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Blind Mark Magnetic Drywall Locator Tool
Blind Mark Magnetic Drywall Locator Tool
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Blind Mark XT Case Side View
Blind Mark XT Open Case
Blind Mark XT - Target in Electrical Outlet Box
Blind Mark XT- Drawing Outline
Blind Mark XT - Removing Drywall Cutout
Blind Mark XT Locator Magnet
Blind Mark XT Case
Blind Mark XT Locator Magnet
Blind Mark XT Target

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Model # 8105

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Blind Mark Magnetic Drywall Locator Tool
Reviews (85)

Perfect Drywall Cutouts With No Measuring

Perfect for first-time DIYs or the experienced handyperson, the Blind Mark electrical outlet locator uses powerful rare-earth magnets to help you accurately locate and cut electrical outlet access holes in drywall, sheetrock, paneling and other materials with no measuring required. Eliminates costly measuring errors, keeps wasted drywall sheets out of landfills and improves your productivity.

Other drywall locator methods require you to lift and lower heavy drywall sheets multiple times to mark, cut, then install. With the Blind Mark you simply put it up once, cut the hole and you're done.

Works on drywall, plywood, particle board, laminated flooring, Masonite, exterior siding, cement board, tile backsplashes, slate and more.

  • 3 Target Magnets
  • 1 Target Locator magnet
  • Rugged carrying case
  • Full One-Year Limited Warranty
Tech Specs


  • Box: 10 x 4.875 x 1.25" (255 x 125 x 32 mm)
  • Locator Magnet (1): 3.75 x 2.19 x 0.625" (95 x 55 x 16 mm)
  • Target Magnets (3): 2.25 x 1.625 x 0.625" (57 x 40 x 16 mm) each


  • Case, Target Magnets and Locator Magnet: 1 lb (0.45 kg)
  • Locator Magnet (1): 3.5 oz. (100 gr)
  • Target Magnets (3): 2.5 oz. (70.5 gr) each

WARNING: Handle with care. Contains magnets that are very strong and they can come together with enough force to cause injury. Do not use if you have a pacemaker or any implanted electronic devices. Do not use near a person who has a pacemaker or any electronic implanted device as the magnetic field could interfere with their operation. Keep away from watches, credit cards, magnetic media, electronics, computers and TVs. Keep away from children.

Overall Rating Full StarFull StarFull StarFull StarFull Star
4.98 out of 5 85
User Reviews
fantastic product 5 out of 5.0
User: from Utica, MI
User Rating: ★★★★★
This product is fantastic. Wish it was available years ago when I struggled with making correct outlet cuts. It is amazing and the magnets really work great. Need to advertise more!!!! Needs to be in Home Depot and Lowes.

Outstanding Set 5 out of 5.0
User: from Larkspur CO
User Rating: ★★★★★
Really makes the job easy locating electrical boxes behind gypsum installation - right on the mark!

Buy this tool Now! 5 out of 5.0
User: , Owner/Carpenter of Turning Time Woodworks from Cookeville, TN
User Rating: ★★★★★
I have used Calculated Industries products for many years and always found them to exceed expectations. I found the Blind Mark Locator tool to set the bar even higher. It was an invaluable time saver while hanging sheetrock - but also did an amazing job on 1/2" Birch Plywood used to panel a woodworking shop. Buy this tool Now - you will need it. I has saved me hours of time and significantly reduced my scrap pile on the job. I highly recommend it.

Very good specialty tool 5 out of 5.0
User: , Carpenter of Hindes & McGinnis Contracting from Pittsburgh, PA
User Rating: ★★★★★
This tool has made my life at work way easier. No more measuring each individual outlet and switch box to figure out where to cut the hole in drywall. This is a great product and I highly recommend it.

5 out of 5.0
User: from Bath, New York
User Rating: ★★★★★
Excellent product. Saves tons of time.

No more tape rules 5 out of 5.0
User: from Himrod NY
User Rating: ★★★★★
This is the best thing I've ever seen , works great

blind mark mag drywall locator tool 5 out of 5.0
User: , owner of HandymanServices from metro Detroit
User Rating: ★★★★★
I have only used this once and it seems to really work well. Sure beats doing a lot of measuring.

Blind mark XT 5 out of 5.0
User: , Police officer from Niagara Falls NY
User Rating: ★★★★★
This is a great product. Very easy to use and makes cutting holes in drywall a breeze. Highly recommend this product.

Easy and accurate 5 out of 5.0
User: from San Francisco
User Rating: ★★★★★
I'm a DIY and installing drywall for my major renovation. Makes it so much easier to mark and cut out electrical boxes. I should have purchased the recessed light blind mark.

Use of Blind Mark XT 5 out of 5.0
User: , Handyman from Jacksonville, FL
User Rating: ★★★★★
I just recently purchased and used this tool and also previously used the Light socket adapter. These are amazing tools and make it so much easier to install the drywall once, instead of multiple times. I have been using these products in a rental property, having to replace all the drywall after a flood from water pipes under the kitchen sink. I would wholeheartedly recommend these to everyone that does drywall work. Thank you...

Blindmark 5 out of 5.0
User: from Sacramento ,Ca
User Rating: ★★★★★
Used to put up and cut out boxes from measurements. This is so much easier.

Simple and effective 5 out of 5.0
User: , Electrical/General Contractor from Upper Darby, Pennsylvania
User Rating: ★★★★★
Basic concept and design which makes your job much easier. Eliminates measuring errors.

excellent tool 5 out of 5.0
User: from Cadillac MI
User Rating: ★★★★★
This makes cutting out for boxes so much easier and faster. I checked the boxes for plumb before the drywall was in place to fine tune the target locator with a six inch level. All cuts are right on the money.

love it 5 out of 5.0
User: , Painter/Handyman from Heber, UT
User Rating: ★★★★★
This is amazing; what a time saver

nice 5 out of 5.0
User: , Owner of Bill's Home Remodeling from New Carlisle
User Rating: ★★★★★
Works great. Cut many holes wrong before I got my Blind Mark tool.

Blind Mark XT 5 out of 5.0
User: from Dunbarton, NH
User Rating: ★★★★★
Great Product

best tool ever 5 out of 5.0
User: from Nevada, Iowa
User Rating: ★★★★★
Got the tool this morning. Went to my granddaughter's house and cut 3 outlets perfect. Best tool ever.

Mind saver! 5 out of 5.0
User: , Woodworker from Nitro, WV
User Rating: ★★★★★
Beforehand I have been perfectly capable of measuring and locating said outlets, however this is only if I am permitted to be in seclusion most of the day as I labor over calculations. These markers have allowed me to easily and accurately install Sheetrock without fear of committing mayhem, loss of time, and destruction of property. One of those a wonderful tools that you don't need until you need it. Would recommend to amateurs and professionals alike.

Blind Mark to the rescue! 5 out of 5.0
User: from Vineland, NJ
User Rating: ★★★★★
These things are an absolute god-send. I can do many things well when it comes to construction. Unfortunately, one of them is measuring out for my boxes. It is time-consuming and sometimes downright confusing when you have so many numbers floating around your thinking space. I stumbled across these on YouTube, not really sure how, but I did and right away knew I had to have them. My local big box stores didn't carry them so I looked to my favorite web marketplace...Amazon. The price was less than I expected and the reviews were amazing. I attributed the bad or middle of the road reviews to user-error. I didn't have a project right away to use them, so they sat for a couple of months before use. Well, I just bought my first home at the ripe old age of 24 and decided I wanted to finish the basement. Using 1/2" drywall these markers make such easy work of finding, marking, and cutting out your boxes first time, every time with no errors. They have made hanging rock such an easy job and maybe...dare I say it...more fun? I know it sounds psychotic, but hanging rock and working towards my goal has been nothing but a pleasure due to these markers. Thanks for a great product, and I hope to expand my collection Blind Mark markers.

A Good purchase 5 out of 5.0
User: , Art Director of Platypus Design from Milwaukee, WI
User Rating: ★★★★★
While I can't actually quantify how much time Blind Mark has saved me, it’s safe to say that the tool has paid for itself with just one job. I’m not a contractor who does this stuff every day, so cutting outlets has always been a time-consuming pain. With Blind Mark, it’s much faster and since there are no more errors, I’ve saved additional time in finishing because I don’t have to repair my mistakes.

Makes life easy! 5 out of 5.0
User: from Brossard, QC
User Rating: ★★★★★
No more guestimating and measuring twice.

5 out of 5.0
User: from Beaver Dam WI
User Rating: ★★★★★
What a time saver! I have hung a lot of drywall in the past and a friend of mine recommend that I give these magnets a try. Was I surprised on how fast and easy these are to use, no more measuring and cutting - just throw the drywall up and add the magnet to the front and you will be right on the money every time. Great product...

5 out of 5.0
User: from Winter Garden, FL
User Rating: ★★★★★
FYI, these things are fantastic. I am using a RotoZip to cut them out, and I'm actually getting better at feeling the boxes. I use plastic nail-on boxes, which even a RotoZip tool can cut into. But as I've been using the lines to help guide me around the boxes, I've gotten much better at feeling the boxes. Still, even if I get good enough to go without the Blind Mark, these things are worth it, as having that line there is very comforting. I was never any good at the RotoZip, so I would measure and cut the boxes before hanging the drywall. The Blind Mark is the best thing for new hangers, or home do-it-yourselfers, like me.

Great time saver. 5 out of 5.0
User Rating: ★★★★★
I am not a drywall guy per se but I got a remodeling job which included a lot of drywall work.
Trying to better myself and get faster I watched a lot of videos etc and came across this product.
After reading about I thought I give it try since the job included a lot of cut outs for boxes.
They are very easy to use and they work, one thing I did thou was to mark the directions on them with a black felt pen
since my eyesight is not that good anymore and my glasses are always somewhere else.
In hindsight I wish I gotten them sooner since they are a real time saver and do away with a lot measuring
which takes time and numbers can get mixed up.

Really WORKS!! 5 out of 5.0
User: from Lexington, IL
User Rating: ★★★★★
Working on my 4th remodel and decided it was time to try something different for location outlets. I've used the old measure and cut by hand then went the power route with a multi tool. Found this to be difficult and time consuming to try and measure and get the boxes to line up correctly. Next tried a RotoZip with tracer bits in the past and found it difficult to use with plastic boxes. The bits heat up pretty quickly and tended to melt the sides of the boxes if not careful.
Then I stumbled onto the Blind Mark XT. Figured I'd give it a shot since I've got 75 plus outlets to cut out on my current project. Honestly I wasn't expecting to be great. To my surprise, this thing REALLY WORKS, and it's easy and accurate every time. No more measuring out every box. Just install the one unit in the box, slide the other unit until the magnets line up, trace, and cut. Save you a lot of time and I would/have recommended this to other DIY people.

Awesome tool!!!! 5 out of 5.0
User: , DIY from Palm City ,Fl
User Rating: ★★★★★
Used the blind mark for the first time today. Makes short work of cutting out outlets in drywall. Amazingly accurate.

Love it!!! 5 out of 5.0
User: , Contractor from Ontario, Canada
User Rating: ★★★★★
Bought this product to give it a try but not expecting too much. After hanging 40 sheets of 5/8th with lots of plugs I cant imagine going back to the old measure and cut method. Myself and everyone helping me were very impressed and made the job way easier. Thanks for the great product.

See Blind Mark in action 5 out of 5.0
User: from Midwest US
User Rating: ★★★★★
This product is the cat's meow for anyone that needs a little sense of comfort that they are making an accurate cutout in drywall. We used Blind Mark for every drywall cutout in our project with super results. Come visit us as we build our workshop with Blind Mark: http://www.libertynaturepreserve.com/the-work-shop.htm

Review 5 out of 5.0
User: from Delmar NY 12054
User Rating: ★★★★★
Very easy to use, it worked great, it sure beats measuring to locate the boxes.

0 out of 5.0
User Rating:
I recently purchased a Blind Mark Mode 8105 drywall tool. I took it to a Habitat build and it worked great! Several of the guys said they were going to buy one.

Pays for itself quickly 5 out of 5.0
User: from Charlotte, NC
User Rating: ★★★★★
I'm a DIYer, do most projects completely alone, and think of things this way - "How many mistakes would I have to make before this product paid for itself?" The answer in this case is 2. (2) 4x12 sheets of drywall screwed up is greater than the cost of this product, so why not get something that makes life easier? Then there's the time consideration - I don't have time to replace mistakes or go to/from the supply house over and over, so GREAT deal in my opinion. Secondly, accuracy is key when cutting out your box holes and this thing really does the trick.

Blind Mark Wizard 5 out of 5.0
User: , Owner of Alberici Contracting from Johnsonville, NY
User Rating: ★★★★★
In the trades time is money. Blind mark is by far the biggest bang for what money can buy. Our company recently purchased these units on amazon put them to work the very next day on site. Our method of hanging rock has changed needless to say. Productive tool, 5 star A plus.

They took a great product and made it even better! 5 out of 5.0
User: , Contractor from Minneapolis
User Rating: ★★★★★
I'm buying these to replace an older set that I bought from Menards a while ago. While I'm not happy to have to replace my stolen set, I am VERY happy to see the updates to the product since I last bought/ used it. The prior version didn't sit well in composite boxes, but these are much better and will work with any box I've tested it with.

The magnets are incredibly strong. I was able to move the locator around through the 3/4" ply of my desk, with the target another 1/4" away from the surface... So there's no way you're not going to get good registration through even 5/8" drywall.

I've done a lot of renovations of homes through the years, and many "professionals" will destroy the wires tucked in the boxes with their rotozips. Well with this tool there's absolutely NO reason to damage your wiring. I really wish more people doing drywall used these. Perfect holes around your electrical boxes every single time.

Best tool to locate electrical boxes ever 5 out of 5.0
User: from Eugene, OR
User Rating: ★★★★★
I am building a new wood shop and wanted a lot of electrical outlets, I have never been good at locating the boxes and was dreading the thought of all the boxes I wanted. I am putting up 7/16 OSB. I have used the Blind Mark XT and cannot believe how easy it is. I even find myself enjoying cutting out the holes and watching them fit perfectly every time. The only thing to watch out for is to make sure the both the interior and exterior locator is pointing the same direction or you will be 1/2 a hole off. This product amazes my friends. Can't recommend this too much.

0 out of 5.0
User Rating:
I recently purchased your blind mark. I was advised of your product by a video of Myron ferguson who is a great teacher in drywall installation. I want to let you know that the unit worked great in doing 4 electric boxes which I had no idea of how to cut out

Simple to use 0 out of 5.0
User: from Memphis, Tennessee
User Rating:
What a fantastic devise and simple to use. Not having to measure or use different ways to mark drywall to get precise location of the electrical boxes, a must have item in a handyman tool box.

No oversize holes or misses 0 out of 5.0
User: from Gulfport, Mississippi
User Rating:
The Blind Mark worked very well, it is a great tool for the home do-it yourselfer. It made finding and marking the electrical boxes a snap, worked perfectly on every box, no oversize holes or misses.

More accurate 0 out of 5.0
User: from Rio Rancho, New Mexico
User Rating:
It definitely made finding the boxes easier and the hole cutting more accurate.

So much easier 0 out of 5.0
User: from Delaware, Ohio
User Rating:
I am the executive director of Delaware County Habitat for Humanity. On Sunday we had 20 Ohio Wesleyan University freshmen on one of our building sites to install drywall. One of our volunteer crew leaders had your Blind Mark drywall tool and it was a hit. It made teaching students the fine art of hanging drywall so much easier.

Worth every penny 0 out of 5.0
User: from Middletown, Maryland
User Rating:
I received the product on Friday. Just in time for the weekend. I was hanging about 50 sheets of drywall up in my garage. I had about 20 boxes to cut out. Not only did the Blind Mark decrease the installation time, I won't have to use a single oversized wall plate. The downside of using this product is that it makes my other drywall jobs look bad. Worth every penny!

Paneling 50 sheets…with no mistakes, no worries, no measuring 0 out of 5.0
User: from Rochester, NY
User Rating:
I'm so glad I saw your product in Handy magazine. I installed 50 sheets of paneling this week without one mistake and no worries, or measuring.
Your product was well worth the price.
I'll be sure to use my set for years to come.

Ingenious! Well worth the purchase. 0 out of 5.0
User: from Oxford, Alabama
User Rating:
Ingenious! Using the Blind Mark couldn’t be simpler and takes all the guess work out of marking off your electrical boxes. Anyone hanging drywall should get this product. The time you save and the mess you avoid makes it well worth the purchase. Plus you save on the spackle and tape that you would have to use on those bad measurements.

Pays for itself in no time! 0 out of 5.0
User: from Shady Side, Maryland
User Rating:
At first the suggested price seemed high. But after finding out how much time the Blind Mark saves, not to mention the costly mistakes it and prevent, the product pays for itself in no time! It’s simple to use, and made to last project after project.

Took out the guesswork 0 out of 5.0
User: from Belle Plaine, Iowa
User Rating:
Blind Mark did a good job of marking where you should cut out. It took out the guess work, and made it easy and fast.

Simple but effective 0 out of 5.0
User: from Gastonia, North Carolina
User Rating:
The product is easy to use. It is simple but effective. You have time to get your material in the proper location unlike the chalk trick and it does not smear.

More accuracy 0 out of 5.0
User: from Santa Rosa, California
User Rating:
Help with speeding up job and with more accuracy.

Great time saver. 0 out of 5.0
User: from Spotswood, New Jersey
User Rating:
The Blind Mark was a great time saver and easy to use. Time is money.

Paneling...worked great! 0 out of 5.0
User: from Greece, New York
User Rating:
Worked great when I was putting up paneling. The paneling went over the outlet the first time.

Effective! 0 out of 5.0
User: from Albany, Oregon
User Rating:
Recommend for convenience and extreme effectiveness for the application

Easy to use! 0 out of 5.0
User: from Plano, Texas
User Rating:
Easy to use! Just as instructions showed

No need to measure! 0 out of 5.0
User: from Niagara Falls, New York
User Rating:
I recommend the Blind Mark because of the time you save marking for cutouts, no need to measure!

Simpler and saved time. 0 out of 5.0
User: from Ponchatoula, Louisiana
User Rating:
We were just about to put up more sheet rock in our new shop when we received the Blind Mark. We had went through the process of cutting out the outlet holes by measuring, sometimes missing the spot slightly. By using the Blind Mark it made the process simpler and saved time. My friends were also impressed with the Blind Mark and the simplicity of the product.

0 out of 5.0
User: from Rock Springs, Wyoming
User Rating:
This product is a time saver and is easy to use.

0 out of 5.0
User: from Centerville, Georgia
User Rating:

Saves time. 0 out of 5.0
User: from Polo, Illinois
User Rating:
The Blind Mark wall kit is easy to use and saves time in installing drywall. It really works well when using a spiral cutter.

Great idea! 0 out of 5.0
User: from Pullman, Washington
User Rating:
Wish I had this product a long time ago.

No more missing the box... 0 out of 5.0
User: from Bay City, Texas
User Rating:
Saves time and energy no more missing the box or making more holes than necessary.

No more measuring or guessing... 0 out of 5.0
User: from Great Bend, Kansas
User Rating:
I was redoing my bathroom and had 5 outlets and switches to make cut out in drywall for. By using the Blind Mark there was no more measuring or guessing where to cut the holes in the new wall board and tile. Work went faster and very accurate. I would definitely recommend this product for putting up new wall board or other wall coverings.

Very effective 0 out of 5.0
User: from Baskerville, Virginia
User Rating:
It is easy to use and very effective in its application. It does make the job easier.

It is FANTASTIC 0 out of 5.0
User: from Riverside, CA
User Rating:
I've just started using your Blind Mark on my "Garage-Mahal" project and it is FANTASTIC. Not often do I come across a product that does what is say and does it so well. I've also told my friends.

Surprised the heck out of me! 0 out of 5.0
User: from Lancaster, Texas
User Rating:
This product surprised the heck out of me. It worked wonderful. I was very skeptical at first, but not anymore!

Worked Great! 0 out of 5.0
User: from Fresno, California
User Rating:
Never seen anything like it. Worked Great!

It worked great 0 out of 5.0
User: from Woodland, Pennsylvania
User Rating:
This product is very well suited to be used with new construction or a remodeling project. I just finished remodeling my camping trailer using paneling and wallboard, it worked great.

No more trying to measure and hope... 0 out of 5.0
User: from Worchester, Maine
User Rating:
I would recommend this product to anyone that is doing a home improvement with drywall. The Blind Mark is real easy to use to mark electrical or cable boxes. When doing drywall with the Blind Mark no more trying to measure and hope that you cut out the opening in the right stop. Very good product for anyone doing drywall.

Great Product! 0 out of 5.0
User: from New Ulm, Minnesota
User Rating:
Would have saved me a lot of headaches in the past. Also tried it for transfer lines to different piece of project –worked great.

Easy to use. 0 out of 5.0
User: from Martinez, Georgia
User Rating:
This system was great for putting up sheet rock and not have to worry whether you cut the hole for the outlet in the right place. It was easy to use and is a welcome addition to my tool box.

Eliminates measuring time 0 out of 5.0
User: from Sergeant Bluff, Iowa
User Rating:
Performs exactly as described. Simple design, but eliminates time formerly needed for measuring.

Excellent cutouts...no measuring 0 out of 5.0
User: from Marlow, Oklahoma
User Rating:
The product is excellent in putting up sheet rock. You don't have to measure and you have excellent cut outs every time.

8000sf church remodel...it really works. 0 out of 5.0
User: from Chaunte, Kansas
User Rating:
I recommend the Blind Mark because it really works. I am assisting with a completing the interior of an 8000 square foot addition to our church. I found the Blind Mark helpful and let me open the hole for the electrical boxes with accuracy.

Sure cuts down installation time... 0 out of 5.0
User: from Hudson Oaks, Texas
User Rating:
First product of this type I have seen. Sure cuts down on installation time and are accurate.

It worked perfectly 0 out of 5.0
User: from Towanda, Kansas
User Rating:
I would recommend this product. The strength of the magnets is impressive. I used the Blind Mark to finish my basement. It worked perfectly on 1/2 inch drywall.

Worked like a charm...even over 1 inch drywall 0 out of 5.0
User: from Howell, Michigan
User Rating:
Worked like a charm! The locator centered itself beautifully over the Target. The magnets are strong enough to connect even over 1 inch drywall (I had to check)

It Works! 5 out of 5.0
User: from Connecticut
User Rating: ★★★★★
Like maybe some people, I did not think this gadget would work, but I had wall board to go over 22 electric boxes, so I tried it, and it is unbelievably good. A fantastic gadget!

Worth every penny 5 out of 5.0
User: from Medway, MA
User Rating: ★★★★★
This product is extremely easy to use and gives you a dead accurate mark to make your cuts. The days of gaps around electric boxes, or trying to figure out where to make the cuts are over.

Excellent Product 5 out of 5.0
User Rating: ★★★★★
This tool really saves time and it is accurate. Highly recommend it to anybody doing drywall.

Success with the first box 5 out of 5.0
User: from Juliet, TN
User Rating: ★★★★★
I am a member of a volunteer group from MT. Juliet, Tennessee who continues to help rebuild southern Mississippi after the terrible damage from Katrina. A group of us just returned from a week of drywalling a house in Waveland Mississippi. Only two of us had any drywall experience and it was our first attempt to use the Blind Mark system. It was a success starting with the first box cut. Five of us used the Blind Mark system effectively. This system saved us many hours of measuring and cutting, not to mention the accuracy of the cuts.

Blind Mark Locator 4 out of 5.0
User Rating: ★★★★
Wonderful product for the home do-it-yourselfer or even a contractor. Not once did I have an oversized, undersized, or misplaced cutout in the drywall while using this product. Carry case keeps everything safe and secure. Magnet is very strong and accurately locates the outlet box saving lots of time. If you're doing any drywall work, I would highly recommend this product. Just don't loan it to anyone as you may not get it back!

5 out of 5.0
User: from Oxford, CT
User Rating: ★★★★★
Works like a charm. Right on the mark every time. I would recommend. Cost effective too.

Blind Mark Wall Kit 5 out of 5.0
User: from Marcy, NY
User Rating: ★★★★★
This was the best purchase I've made this year. It was so easy to use and I hit the mark every time. It works great on 3/8 sheet rock. A real time saver!!

Blind Mark Wall Kit 5 out of 5.0
User: from Cape Cod, MA
User Rating: ★★★★★
Absolutely terrific! It's not meant for a retrofit, but on new drywall it makes life so much easier. Easy to use - lines itself up, give it a nudge to make sure it's square and level, trace around the locator, and follow your lines with your roto tool. Fast and perfect every time. I'll never have to buy another oversize outlet plate again.

Love It! 5 out of 5.0
User: from Pennsylvania
User Rating: ★★★★★
Permanent magnets in these make this a ecofriendly product that works well. I’ve done about 23 outlet boxes in smartsiding . All were good and you can do gang boxes by putting 1 in each end and connect the lines. Very simple to use.

5 out of 5.0
User: from Spokane WA
User Rating: ★★★★★
I first saw this on DIY's Cool Tools. I thought I'd try it out on my kitchen remodel. It worked great! The counter and cabinet installers both thought it was a great tool also. It's well priced, and works as advertised.

Really like the locating Kit 5 out of 5.0
User: from Portland OR
User Rating: ★★★★★
I experimented on a scrape piece and then tried it on a small section while moving a wall plug. Worked great and I feel comfortable using the tool kit on larger projects.

Easy drywall marking and cut outs 5 out of 5.0
User: from Houston
User Rating: ★★★★★
In the past year and a half, I have used the Blind Mark products in helping to build nine Habitat for Humanity homes. That's a total of more than 1000 cut-outs for electrical boxes, vents, and lights, so I have some expertise in this area. Before using the Blind Mark products, the crew would often cut the electrical wires stuffed in the boxes (using the "stab the saw in the middle of where you think the box is" technique), or it would be a laborious project of measuring, marking and cutting just to find out that the hole wasn't exactly where you wanted it! Since switching to using the Blind Mark, EVERY hole is perfect, there have not been any cut wires, no forgotten boxes, and our speed has picked up. No more box measuring, just a mark on the floor for each stud location and a ">" or "<" showing what side of the stud a box is on. After the drywall sheet is loosely tacked in place, each box is found and marked using the locator magnet, and then cut-out with a spiral saw using a guide-tip blade to guide around the outside of the box (guide the tool in a counter-clockwise direction for outside cuts!). A knife or keyhole saw could also be used, but the spiral saw is fast and makes a nice clean cut-out. After the holes have been cut, the drywall panel is then pushed all the way to the studs and nailed or screwed. I highly recommend this product to all drywallers, pro and amateur alike.

Works exactly as advertised, easy to learn & use 5 out of 5.0
User Rating: ★★★★★
I bought this to locate electrical boxes behind 5/8" drywall, and it works extremely well.
A couple of things:
1. If you're using the typical plastic nail-on new work boxes, remove the little plastic spacers from the side of the box against the stud with a pair of pliers or a razor knife. Otherwise, you have to cut out quite a bit wider or risk blowing out the drywall on the stud-side of the box.
2. I found using a pencil rather than a sharpie made it easy to follow the line accurately.
3. I used an oscillating multi-tool with a Dremel drywall jab-saw blade. This worked very well. It's loud, and cuts a lot slower than a rotozip, but it won't get away from you. I found it best to try to cut the hole tight, pry the piece out and see where the box sits. I had to enlarge a couple of holes slightly before the drywall would fit around the box. Better too small than too big, you can always cut out more. Just don't push on the sheet until you pry the piece out and see how accurate your cut was.
4. Obviously, if you hang sheetrock for a living, you probably can find the boxes and cut them out with a rotozip in your sleep, without using this tool. However, this tool is great for someone starting out or who occasionally hangs drywall.
After cutting a few holes, probably too large, you'll get a good feeling as to where to cut in relation to your pencil line. After the first few boxes, I was cutting extremely tight holes without even trying.

• User's Guide • Spec Sheet