Check the drill sets that you own.
Tap drill sizes
Find tap drills, thread specs, and clearance drills.
See what drills are contained in drill sets.
Find the closest drill to the hole size you need.
Speeds & Feeds
Find the correct cutting speed and feed rate.
Sine Bar & Sine Vise Calculator
Find the height of spacer blocks to use.
Bolt Circle Layout Calculator
Find the locations of holes on a bolt circle.
Bolt Circle Diameter Calculator
Find the diameter of an existing bolt circle.