GRENPRO Step Drill Bit, 1/8"-1/2" Four Spiral Flute Cobalt Step Drill Bit, 1/4" Hex Shank Step Bit for Stainless Steel, Metal, Aluminum, Copper,Aluminum, Wood, PVC

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About This M35 HSS COBALT STEP DRILL - GrenPRO drill bits Specially designed for Metal Sheet/Wood/Plastic/Aluminum/Copper TiAlN COATING - Our step drill bit surface hardness enable s 68% faster drilling efficiency and 450% longer lifespan than conventional drills Size: 13 step sizes Includes 1/8",3/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16",15/32",1/2". step drill bit for metal can make multiple holes of different diameters in materials such as stainless steel, aluminum, wood, plastic sheets, etc UNIVERSAL 1/4" HEX SHANK - Secure grip for lithium-ion drills/hand drills/bench drills with anti-slip laser etching(1/4"=6.35 mm) WARRANTY - Contact GRENPRO for instant replacement with no questions asked Overview Material : Cobalt Cutting Diameter : 0.5 Inches Finish Type : Titanium, Titanium Aluminum Nitride Shank Type : Hex Brand : GRENPRO Show more