COMOWARE Step Drill Bit - Titanium Coated Total 10 Sizes from 1/4" to 1-3/8"

HSS step drill with Titanium Coating Highspeed steel material ensures a longer service lifeThis unibit step drill bit features advanced heatcorrosionrust resistant coating specially engineered for demanding metal drilling applications MultiMaterial Performance This step drill bit set effortlessly drills through steel sheets aluminum wood and plastic with clean holes The step bits are perfect for DIY home projects and professional buildingengineering applications Two Straight Flutes stepped drill bit The dualflute design ensures faster chip removal and cleaner holes This step drill bits for metal provides smoother cutting while efficiently evacuating chips for peak drilling performance TriFlatted Shank Step Bit Set These professional step drill bits feature 3 precisionflatted shanks for maximum grip eliminating slippage under high torque The enhanced design ensures secure clamping in pistol drills Set Includes This metal step drill bit includes 5 common sizes for versatility drills 28 sizes 316 to 138 laseretched markings on the unibit allow instant size identification for precision metalworking