Machinist Kalc Programs

This 18-page file  is a must-have for any machinist who works with threads. The image below is just the first page of what you'll receive in this highly recommended PDF.  What you'll receive in this PDF: Basic thread dimensions for coarse threads and tap drill sizes. Includes major, pitch, and minor diameters. Basic thread dimensions for fine threads and tap drill sizes. Basic thread dimensions for special thread pitches and tap drill sizes. Basic thread shapes. Constants used to find pitch and root diameters of screw threads. Class II screws and nuts pitch minimum and maximum diameter limits with threads per inch provided. Metric threads comparison chart. ISO metric and ISO inch thread form. Recommended metric series thread form. Metric formula to obtain tap drill sizes. 3-wire method to measure metric and American standard threads. American national pipe thread according to pitch diameter of thread at the end of the pipe and at the gauging notch, outside diameter of the pip...

Download your PDF and Excel copies of this thread data today! The files you are downloading include an Internal/External Thread Chart in Excel format and a Thread Calculations form in PDF format. If you have trouble downloading these files, feel free to contact me , and I will be very happy to email these two files to you. Thanks for visiting www.MachinistKalc.com today. Read more about why we provide these helpful tips each month. 

Today's tip is a Metric Thread Pitch Conversion Chart . As you can see in the sample image below, the chart includes conversions for metric thread pitch, thread pitch in inches, threads per inch, and basic height. Great printed tool to keep nearby. Contact me if you have any questions or problems downloading this PDF file. Thanks for visiting www.MachinistKalc.com . 

Today's tip is a chart for Pipe Thread Sizes  that you can download free of charge. This chart provides the Tap Thread Size, Approximate Inside Diameter, Approximate Outside Diameter, and Tap Drill Size of the most commonly used standard threaded pipe sizes. Find out more information about charts and other tools you should keep on your phone or in your toolbox for easy accessibility. Contact me if you have any trouble downloading this chart. Thanks for visiting wwwMachinistKalc.com today. 

Milling machine arbor and spindle tapers require a 3 1/2 inch (29.17%) taper per foot. Download and print this handy chart and keep nearby to assist you with frequent tapers. The arbor taper chart shows dimensions in inches and millimeters for sizes 30, 40, 50, 60 and I, J, K, L, M, N, O, P, Q, R. Standards are not established for metric thread sizes for K. The spindle taper chart also shows dimensions in inches and millimeters for sizes 30, 40, 50, 60 and A, B, C, D, E, F, G, H. Standards are not established for metric thread sizes for H. Thanks for visiting MachinistKalc.com today.