Description The DEWALT step drill bit set features 3 innovative Titanium Nitride Coating step drill bits to power through a range of applications. Each bit is equipped with a split-point tip that helps to increase speed and starts on contact. An innovative double-spiral flute design delivers long life and outstanding chip removal. Laser-engraved numbers helps to increase step visibility. Optimized for impact drivers. Works with rotary drills.Titanium Nitride Coated two flute spiral design provides longer life and better chip removal for the DEWALT drill bit setSplit point tip of the drill bit increases speedLaser engraved numbers increases step visiblity1/4-inch hex shankOptimized for impact driver usageMaterial: Titanium Nitride CoatedFinish Type: Titanium NitrideShank Type: HexDimensions LxWxH: 6 x 5 x 0.88 inches WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov