3-12MM HSS Step Drill Bit Set Nitrogen Coated Straight Groove High Speed Steel Stepped Up Cone Conical Hex Shank Hole Cutter

Good luck with your favorite purchases 3PCS/SET 3-12MM HSS Step Drill Bit Set Nitrogen High Speed Steel Cone Shank Hole drills Description: 스텝드릴, сверло ступенчатое, ступенчатое сверло, сверла ступенчатае, набор ступенчатых сверл, 스텝드릴비트 Type: Step Drill Bit Head Type:Hexagon Shank Material:High Speed Steel Surface Treatment: Nitrogen coating Supporting tools: Pistol drill, Hand drill, Charging drill, Bench drill. Product: 3-12mm, 4-12mm, 4-20mm (Straight Groove)

Specifications: 2-FLUTE DESIGN: Nitrogen coating bit with 2-flute design for versatile drilling in steel, stainless steel, copper, aluminum, and other surfaces CUTS AND DEBURRS: Cuts through steel, sheet metal and other surfaces with only a small amount of pressure and deburrs as you drill SUPER STRONG: Made of high speed steel and nitrogen coated for added durability and bit life MULTIPLE DRILL SIZES WITH ONE BIT: 3-12mm, 4-12mm, 4-20mm VERSATILE AND FAST: 1/4" hex shank fits most tools and prevents slippage when drilling new holes or enlarging existing holes

Package Included: 3pcs/set HSS Nitrogen Step Drill Bit