Ideal for machining pros and shop owners who want to increase productivity and profits in the design, layout and set-up stages of production and reduce wear and tear on costly cutting tools.
The Machinist Calc Pro is the first dedicated handheld machining math and reference tool to provide a complete assortment of machine shop solutions. It has more complete Thread data than the Machinery's Handbook, including step-saving Thread and Drill Size chart look-ups, speeds and feeds, right triangle solutions, bolt patterns and much more.
Spend more time machining and less time looking up specs and data in books, on charts or in computer programs.
Includes a rugged shock, dust and moisture resistant Armadillo Gear protective case.
Built-in Functions and Calculations:
Speeds and Feeds calculate for milling, turning and drilling; cutting speed, spindle speed (RPM), feed rate (IPM), cutting feed, feed per tooth/chip load, number of Teeth and Radial Chip Thinning adjustment factor
Built-in Drill and Thread Size Tables - save time and steps (Compliant with ANSI/ASME B1.1-2003 and ANSI/ASME B1.13M-2005)
Enter Numeric, Fractional, Metric Thread Sizes and Drill Sizes - and display tap, roll tap, close and free fit drill sizes plus pitch, major and minor diameters
Right Triangle Math - plus trigonometric functions
Drill Points - enter the cutting angle and drill size to calculate the drill point cut depth
Bolt Pattern Hole Layouts - enter start angle, number of bolts, diameter and optional x, y offset; calculate x and y coordinates. Find center-to-center spacing for bolt pattern layouts
3-Wire Measure - enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter
For efficiency-minded Machinists, Setters, Tool and Die Makers, Supervisors, Shop Owners
Speeds and Feeds - Calculate for Milling, Turning and Drilling; Spindle Speed (RPM), Feed Rate (IPM), Cut Speed, Cut Feed, Feed per Tooth, Number of Teeth and Radial Chip Thinning adjustment factor
Thread Size - Enter numeric, fractional or metric thread sizes and display tap, roll tap, close and free fit drill sizes. Display pitch, major and minor diameters
Drill Point - Enter the cutting angle and Drill Size and calculate the Drill Point cut depth
Drill Size - Enter numeric, letter, fractional or metric Drill Size and display the closest fitting Drill Size and scroll through available drill sizes
3-Wire Measure - Enter Wire Size (or use calculated Best Wire size) and 3-Wire Measurement to calculate pitch diameter
Right Triangle Math - Enter, calculate Angle, Hypotenuse, Opposite and Adjacent side lengths
Thread Classification Tables
U.S. Internal (3) 1B, 2B, 3B
External (3) 1A, 2A, 3A
Metric Internal (14) 3G-9G and 3H-9H
External (28) 3g-9g, 3h-9h, 3e-9e, 3f-9f
U.S. and Metric Unit Entries and Conversions
m, mm, cm
Area, Volume and Weight
Works as a Standard Calculator
Rugged, shock-, moisture- and dust-resistant Armadillo Gear case
Quick Reference Guide and complete, easy-to-follow User Guide
Two 1.5 volt LR-44/A76 Long-life Batteries
Full One-Year Limited Warranty
Size: 6.25" x 3.5" x 0.9" (160 mm x 90 mm x 25 mm)
Product Weight: Weight: 6 oz. (170 gm) Includes Armadillo Gear Case
Power: Two 1.5-volt (LR-44/A76) Long-life batteries (included)
Display Type: 12 Digits (8 normal, 4 fractions) with full annunciators
Display Dimensions: 0.625" x 2.5" (15 mm x 65 mm)
Accuracy: 12 Digit Internal Accuracy
4.86 out of 515
A Machinist for 30 Years5 out of 5.0
User: Howard Burkham, CNC Machinist/Toolmaker of PCC Aerostructures from Arlington, TX
Love this calculator! Us old-schoolers have trig books, various feed/speed sliders from tool companies, etc. This calculator takes my volumes of notes and notebooks out of my toolbox!
0 out of 5.0
User: Alan L. Duff
I have only had my 4087 calc. a couple of days and it surpassed every thing I expected it to be. manual is clear ,is completely accurate, and is the best investment I have made in quite some time, every machinist should have one!!
IMTS5 out of 5.0
User: Brian Hebert, lead machinist of ATI from Pacific MO.
I had the chance to handle one of these at IMTS 2014 on Tues. It is still my favorite calculator. I am currently using the machinist calc pro and I can't wait to get a pro2.
Extremely useful resource5 out of 5.0
User: Scott Rackley, Tool Maker, Tool Designer from Chattanooga, TN
I design tools for a major corporation. I use this calculator every day. Once you learn all the tricks, calculations are a breeze. Recommended for all tool makers, machinists, and apprentices.
Pays for its self5 out of 5.0
User: R Blocker, machinst from Spokane, Wa
I will say this is the best set-up calulator on the market today. 25 years as a machinist,The Machinist Calc Pro has paid for itself in the first week . NO KIDDING
Does its job well4 out of 5.0
User: Mark Fischer, Machinist of Taylor Machine, Inc. from Blaine, MN
Good product for professional machinists alike.
Excellent Tool5 out of 5.0
User: Sean Farrell, Student Machinist from Charlotte, NC
As a machining student this tool has been invaluable with helping a rookie with all my calculations!
Machinist Calc Pro4 out of 5.0
User: Rex D. Banet from Jeffersonville, IN
This Calculator is extremely useful and user friendly. I purchased a total of 8 for our Toolmakers and most have had the trade for 25 + years and are impressed and continually use the calculators.
Very nice5 out of 5.0
User: Paulo Fernandes, CNC Operator of Flowserve from Etten Leur
Very nice product, and need every time to work. Thank you so much
5 out of 5.0
User: J. Douglas Bowman, HTEC Director of Vincennes University from Vincennes, Indiana
I have found the Machinist Calc Pro to be an ideal calculator for the machinist on the shop floor. In a matter of seconds I can easily do everything from calculate speeds and feeds data and determine tap drill sizes, to working trig problems. And jumping between inch and metric is a breeze. It is also ideal for CNC programming, so I encourage everyone that I train to add this calculator to their tool box in order to save time and be more productive.
Superb Product5 out of 5.0
User: Tim Markoski of CNC Machinist Software from Houston, TX
As someone who develops software for a living and has written Machinist Calculator Applications for mobile devices, this unit is simply awesome.
Awesome5 out of 5.0
User: David Crabb, Journeyman Machinist of HMF from Manitowoc, Wisconsin
No more carrying around Machinist Hand book and other charts! This calculator does everything! Makes everything else seem like a 30 year old calculator! Wish I would have had one 20 years ago! Even comes with a great case!Thanks again CI!
Great Tool!5 out of 5.0
User: Jim Vyhlidal, Quality of TRI-V Tool & Mfg. Co. from Omaha, NE.
Has functions that our Machinist Handbook does in the Machinist Pro calculator.
5 out of 5.0
User: Michael Ditmore, machinist from Pampa, Texas
Machinist Calc Pro5 out of 5.0
User: Dave Clark, Journeyman Tool and Die Maker from Frankfort, Ky.
I have been a Journeyman Tool and Die Maker for 10yrs. This calculator has most of the calculations you need on a daily basis. Now I don't have to look up charts or do trig. formulas. I wish I had this 10yrs ago.