Helpful Tables


The data provided in these tables assumes the equipment to be in good condition, have adequate horsepower, with the tools and workpiece properly setup.

Modifications may be necessary to suit these variables. These tables are only guidelines and must be interpreted as such.


EDM surface finishes

Hardness Conversions

Tool Room

Drill Sizes & Taps (mm & inch)

Trigonometry functions

Right Angle Triangles

Oblique Triangles

Decimal Equivalents

Common Measure Conversions

Common Metal Gauges

If you have a suggestion about a table or some information you'd like to see here. Call Roger @ 972-247-1821