Products for bench top machinists | LittleMachineShop.com

Machinist Calc Pro 2 Machinists Calculator

Machinist Calc Pro 2 Machinists Calculator - Main image
$59.97 $99.95 In stock

The Machinist Calc Pro 2 is the upgraded version of the original dedicated handheld machining math and reference tool which provides 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.


New features include the ability to enter WOC (width of Cut), LOC (Length of Cut), and DOC (Depth of Cut). It also includes settings for 20 popular materials, 6 processes and 3 Tools. It also has a new larger 2-line LCD display.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Edward ★★★★★

The quick-reference for threading speeds saved me at least an hour on a tricky job today. I punched in the numbers and it gave me the exact feed and speed I needed without flipping through a manual. Definitely earning its spot in my toolbox.

Joseph ★★★★★

I was able to set up a threading operation in seconds using the built-in reference tables, and the built-in trig functions saved me from pulling out my phone for every angle.

Nicholas A. ★★★★★

The thread pitch and speed/feed lookups have already saved me a ton of time at the lathe, and the screen is way more readable than my old calculator. I've had it in my shop apron for a week now and it's held up to coolant splashes just fine.