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• Settings
  Check the drill sets that you own.
• Tap drill sizes
  Find tap drills, thread specs, and clearance drills.
• Drill sizes
  See what drills are contained in drill sets.
• Closest Drill
  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.