• Diameter: 4-1/8"

• Shank: 3-Flat

• Two Inside Cutter Blades Shave The Hole Radius For Clean, Smooth Holes Without Pressure

• Center Feed Screw Pilots The Bit And Allows The Bit To Pull Through Fast

• Bits Are Resharpenable And Includes Two Removable, Replaceable Feed Screws

• Arbor Is Replaceable

Warning this product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.