This page gives cutting speeds for turning, milling, and drilling of several different materials. It includes a calculator to figure the spindle speed required.

This page give the dimensions of Morse, Jacobs, Brown & Sharpe, and Jarno tapers.

This chart shows the diameters of letter gauge drills size A (the smallest) to size Z (the largest).

This chart shows the diameters of number gauge drills size 80 (the smallest) to size 1 (the largest).

This is a chart of fractional inches represented in decimal inches and millimeters.

Suggestions for fuel for powering Stirling engines.

This chart shows the spindle thread of many lathes. But don't count on it. Measure the threads on your spindle.

Online machinist's calculator.

We have identified paints that match the various colors used to paint mini lathes and mini mills.

This page give rake and relief angles for turning various materials with high speed steel tool bits.

These symbols are used on the Mechanical Models engine drawings as well as on many other drawings.

This tap and clearance drill chart shows tap and clearance drill sizes for standard threads. There is also a printable version that has both metric and inch threads.