MABLEVI M35 Four Spiral Flute Cobalt Step Drill Bit Set 1/8"-7/8", Wear-Resistant TiAlN Coated 1/4" Hex Shank Unibit Step Bit for Metal, Stainless Steel, Aluminum, Wood, Plastic（3Pcs）
- FOUR CUTTING BLADE UP TO 4X FASTER - Ordinary step drills are prone to deflection during cutting, four cutting blade design guarantees a faster and smoother cutting, allows swarf...
- ULTRA TiAlN COATING UP TO 10X LONGER LIFE - TiAlN coating has excellent characteristics. As a new coating material, which can minimize the wear of the drill bit during each...
- M35 COBALT PREMIUM STEP BIT - M35 steel is a kind of high speed steel containing cobalt, which has the characteristics of high red hardness, high wear resistance and sintering...
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