Resources

Melting Points of Common Metals Chart (in Fahrenheit)

Knoop Hardness Scale: Material Hardness Comparison Chart

American Standard and ISO Metric Thread Sizes and Tap Drills Chart

Standard NPT Tap Drill Sizes and Decimal Equivalents

Torque Conversion Chart: Foot Pounds (ft-lbs) to Newton Meters (N-m)

Recommended Tool Speed Chart

Taper Length Drill Dimensions

Screw Machine Length “Drill Bit” Dimensions

Jobber Length Drill Dimensions