Wawasia 6 Pcs Step Drill Bit Set, Titanium Coated High Speed Steel Step Bit Set, Total 50 Sizes with Automatic Center Punch & Aluminum Case for Multiple Hole

Description

Universal Compatibility Compatible with 1/4, 3/8, 1/2 electric drills or bench drills, but only work for sheet metal, aluminum or plastic. Convenient & Precise Each level of each bit is clearly marked with laser engraving so you can find and drill the precise right diameter every time! Smooth & Clean Drilling Dual grooves quickly remove chips and other swarf as you work, keeping your work safe and each hole well deburred. Distinct Shank Design Our ¼ and ⅜-inch shanks are engineered for maximal stability and strength to prevent any offset or slippage.