Machinist's Calculator

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# Description

Quickly solve trades math problems with this convenient App!

Right Angle calculations-Quickly calculate the dimensions and area of a right angle triangle.

Oblique Triangle calculations-Quickly calculate the dimensions and area of an oblique triangle.

Speeds and Feeds - Quickly calculate cutting Speeds and Feeds for drills, milling cutters, and lathe workpieces. Calculate between RPM and Feet-Per-Minute or Meters-Per-Minute, and between Feed-Per-Rev and Feed-Per-Minute. Drill Charts and Materials List are usable right in the function.

Counter Sinks & Drill Points-Calculate drill point and countersink depths. Drill Charts usable right in the function.

Bolt Circles - Calculate X-Y coordinates for equally spaced bolts. You can make the center of the circle any coordinate you need, and place the first hole at any angle.

Sine Bar - Quickly and accurately calculate precision block stack or angle for use with sine bars or sine plates.

Thread Measure - Quickly make all the calculations required to measure screw threads using the 3 wire method.

Drill Charts-Quickly lookup Decimal conversions of Inch based Number & Letter Drills, and Tapping Charts for UN & ISO Metric, Cutting, and Coldform (roll) taps. Use the Drill Charts right in the Speeds & Feeds and C'Sink & Drill Point Functions.

Materials List--Material list containing starting cutting speeds for over 200 materials. Use the Materials List right in the Speeds & Feeds Function.

All calculations can switch between imperial and metric with the touch of a button.

Uses an attractive graphical diagram background for easy answer references! No more text boxes and labels! Automatically makes the calculation once enough information is entered!

Designed for Smartphones and Tablets!

Right Angle calculations-Quickly calculate the dimensions and area of a right angle triangle.

Oblique Triangle calculations-Quickly calculate the dimensions and area of an oblique triangle.

Speeds and Feeds - Quickly calculate cutting Speeds and Feeds for drills, milling cutters, and lathe workpieces. Calculate between RPM and Feet-Per-Minute or Meters-Per-Minute, and between Feed-Per-Rev and Feed-Per-Minute. Drill Charts and Materials List are usable right in the function.

Counter Sinks & Drill Points-Calculate drill point and countersink depths. Drill Charts usable right in the function.

Bolt Circles - Calculate X-Y coordinates for equally spaced bolts. You can make the center of the circle any coordinate you need, and place the first hole at any angle.

Sine Bar - Quickly and accurately calculate precision block stack or angle for use with sine bars or sine plates.

Thread Measure - Quickly make all the calculations required to measure screw threads using the 3 wire method.

Drill Charts-Quickly lookup Decimal conversions of Inch based Number & Letter Drills, and Tapping Charts for UN & ISO Metric, Cutting, and Coldform (roll) taps. Use the Drill Charts right in the Speeds & Feeds and C'Sink & Drill Point Functions.

Materials List--Material list containing starting cutting speeds for over 200 materials. Use the Materials List right in the Speeds & Feeds Function.

All calculations can switch between imperial and metric with the touch of a button.

Uses an attractive graphical diagram background for easy answer references! No more text boxes and labels! Automatically makes the calculation once enough information is entered!

Designed for Smartphones and Tablets!

My review

Review from

# Reviews

4.4

128 total

5 83

4 28

3 11

2 3

1 3

John Tremblay

Very good. I wish the instructions were clearer for someone, such as myself, that is a little unsure as to what the abbreviations mean. Well worth the price and very useful.

James Atkinson

Very useful in the shop. As a QC inspector, I would like to see some added features. For example...the BC section gives XY coordinates based on a given Bolt Circle. How about giving a Hole-To-Hole dimension to check angular spacing of the holes (BC dia, Hole dia, and Angle will give the number) as well as inside and outside dimensions (BC+OneHole Dia or -One Hole Dia) and then a reference number for concentricity (think a BC concentric to a bore or OD...what's the measurement from the hole to the Ref Dia?). Again, for shop use, this App is great...for QC, it could do more. I'm not complaining (hence 5*), just suggesting. Thanks.

Mike Marshall

Used measurement over wires in the first hour , loved it, makes process much easier and faster saving time and money.

Brandon Roberts

Sometimes I don't have a good signal in the shop and it really sucks that this app has to phone home for copy protection.

User reviews

numbers are questionable in some calculations .... see 3W measurements...

Machinist calculator Use it every day. Very handy for angles and hole circles. I am a factory maintenance and die repair man and appreciate this apps simplicity. Machinery handbook is gathering dust.

Perfect I use the trig and sine bar functions everyday. Only problem is my phone gets filthy from using it so much.

A good app for any machinist. I use the sine bar portion of this weekly. That alone is well worth the few bucks I paid.

C. Schmidt I have a no-contract android phone and noticed that when I use this app it disabled my phones power off capability. Had to remove the battery and power the phone back up otherwise it's a great app. Would like to see a grid pattern calculator with it though.

Work's good The only problem is just application icon just shows an Andriod icon with Words Machinist calculator under it.

Trades Math Calculator September 3, 2014

Hi Aaron, thanks for letting me know. I've had a few people mention issues with the S5 compatibility and am looking into what is the problem, and hopefully be able to get it fixed in a future update. A Great app, if it's possible, help on how to make a circle program, I can never get it right with the x, y, i & j

Great technical app Anyone in the machining industry should have this app. It has everything needed to answer regular everyday questions on the shop floor. I use it in the QA department and am constantly sharing with my coworkers on the floor.

Machinist calculator Does exactly what it supposed to and cuts calculation time bown by a bunch. And for those that rate this app 1 star, maybe learn how to use electronics

Andrew merricks This app single handedly brought my boss out of the stone ages love it

great program for most types of machinest math. saves me lots of time

I like it when an app works. Good job and very useful. My only complaint is when my Boss sees me at the machine using this app he thinks I'm texting! Thumbs up to an app that makes my job easier. Keep up the good work!

Simple, convenient A few necessary tools at your fingertips. Very convenient.

This is great. Helps me out a lot and saves loads of time. Fantastic.

Time saver. Nice!!! Works great! Significantly increases productivity and greatly reduces calculation mistakes. The upgrade is ok, but I liked the original look better. I guess being able to tap your known data on a picture is probably preferred by most. No complaints.

I liked the old app better The new app looks nice but doesn't always respond properly every time I tap the entry buttons. I also miss being able to use app in portrait mode. Galaxy s3

Great app! This went from a good app to a great app with the recent update. Hope to see a tool nose radius calculation function in the future.

Review deleted

# Additional information

Updated

October 9, 2015

Size

Varies with device

Installs

1,000 - 5,000

Current Version

Varies with device

Requires Android

Varies with device

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Trades Math Calculator

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