Step Drill Bit; Type Single Cutting Edge, Dual-Flute, Rapid Strike Tip; Number of Sizes 9; Shank Type 3-Flat, Hex; Shank Size 1/4 Inch; Material High Speed Steel; Finish Black Oxide; Size PG7-PG21 Step Bit

Our Line of Step Drill Bits for Surpasses the Competition; With Our Single Cutting Edge Design, You will have More Control and a Cleaner Finish; Made of High Speed Steel, these New Step Drill Bits are Durable and Designed to Drill through Most Metals; The Black Oxide Finish Prevents Corrosion and has Great Capacity to Work with Drilling Lubricants; The New Speed Start Tip Prevents Bit Walking and Allows Faster Penetration; With Laser Etched Markings You will Always Know Your Hole Sizes No Guess Work Finally, the 1/4 Inch Hex Shank Allows for Fast Bit Change in Impact Drivers and Sure Grip in Chucks; 2X Faster-Cutting; Jam-Free Performance Dual-Flute Design Optimized for Cordless Drills in High Speed Provides Greater Speed and Contro; Laser-Engraved Reference Marks: Easily Stop on any Whole Size; Up to 50% More Holes Per Battery Charge; Rapid Strike Tip: Creates Fast, Accurate Starts and Generates Less Heat; 3-Flat Secure-Grip Shank: Reduces Bit Slippage in the Chuck