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This chart provides Machine screw sizes and their threads per inch. It provides tap drill sizes for aluminum, brass, plastics, stainless steel and iron. Clearance hole drill sizes are listed for a close or free fit.

This chart gives the diameter, hex key size, head height, and head diameter for socket head cap screws in sizes '0" through 1 1/8"

This chart gives drill sizes and their decimal equivalents for letter, number, and fractional drill bits. It also provides decimal equivalents for millimeter size drill bits.

Use this chart to compare finishes based on their appearance, durability and application. For more information about using these three criteria to choose your finish

This chart gives drill speeds for softwoods, hardwoods, aluminum/brass and mild steel. Courtesy WoodSmith magazine

This chart gives surface speeds in feet per minute. This chart is very usefull when working with grinding/turning machines and various metals.

A chart providing the definitions for a few carving tools.