6-piece set High-Speed Steel Step Drill Bit Titanium Coating Steel Spiral Hexagonal Round Shank Metal Tapered Hole

Features:- Made Of High Speed Steel, Heat Treated And Titanium Nitride Coating.- New Steel Large Step Cone Drill Titanium Drill Bit Set Hole Cutter.- Engraving Size Allows For Easy Identification Of The Size You Need, Contrasting With Laser Engraving Size Inside The Step Drill Slot.- Dual Slot Design For Faster, Smoother And Cleaner Cutting.- Increases Hardness, Making The Life Of The Drill 4-5 Times Longer Than That Of Ordinary Drills.- Drill Round Holes On Most Metal, Plastic, Wood, Etc.- Self-Starting Tips Will Not Slip, No Center Punching Or Guide Drill Required.- Designed For Automatic Deburring Hole Cutting- For Electric Drill And Drill Press.- The Triangular Handle Will Not Rotate Inside The Chuck.Specifications:- Type: Spiral/Linear- Size: 4mm To 32mm- Shank: Hexagon (H)/Round (R)- Color: Silver (S)/Gold (G)-Material: Titanium Coated And High Speed Steel- Application: Can Cut Most Steel Plates, Aluminum Plates, Copper, Plastic And Wood Plates, Etc.#阶梯钻头#锥形钻头#钻头#钻头#conedrill#阶梯钻头#阶梯锥形钻头#阶梯钻头#4mm- 32mm Step Drill Bit* Note Disclaimer:All Product Pictures Shown Are For Illustration Purpose Only.Actual Product May Vary In Terms Of Size, Type, Brand, Version, Color And Other Related Characteristics.Product Details May Be Slightly Different Due To Different Production Batches.