• Finishing Diameter: 5/16"

• Pilot Bit Size: 5/32"

• Set Contains 1 - Pilot Bit, 1 - Finishing Bit

• Ideal For Drilling Porcelain And Hard Tiles Up To A Scratch Hardness Of 8

• Cobalt And Tungsten Carbide Tip

• Tip Design Will Prevent The Bit From Walking

• Chrome Vanadium Steel Shank

• Use In Rotary Mode Only, Do Not Hammer

• Max RPM: 400-600

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.