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M MIMHOOY 2Pcs M35 Cobalt Drill Bits 8mm Drill Bit for Metal, Stainless Steel, Steel- Fully Grounded 5% Cobalt
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M MIMHOOY 2Pcs M35 Cobalt Drill Bits 8mm Drill Bit Features
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COBALT DRILL BITS - Manufactured from M35 grade cobalt steel, measuring Rockwell hardness up to 67, increases wear-resistance and durability, fast and sharp cutting than other bits like 4241 HSS bit, titanium drill bits. With up to 12 times when compared with an average HSS drill bit.
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FOR HARDENED MATERIAL - M35 Cobalt HSS BIT is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel and cast iron, they also can be used for softer materials like Wood, Aluminum Alloy.
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SELF CENTERING: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster. The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure.
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PRECISION GROUND - These bits are fully ground so that it's cutting diameter is seriously accurate and the lifespan is prolonged in comparison to non-ground alternatives(roll forged bits). Smooth bit surface allows for nice clean holes.
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SPIRAL CHIP GROOVE: High-efficiency spiral chip groove can remove chips with high-speed operation to effectively prevent chip accumulation.
About M MIMHOOY 2Pcs M35 Cobalt Drill Bits 8mm Drill Bit
Specifications: Material: HSS with 5% COBALT Angle Point: 135 Degree Flute Type: Spiral T Shank Type: Straight Shank Main Description: Self-centering split point allows you to drill directly to the size needed without any pre-drilling. Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. M35 Grade Cobalt Steel: This drill bit contains 5% Cobalt (M35 Cobalt HSS), which increases the strength, the tool life and makes it more heat-resistant. Rockwell Hardness >= 67. M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy. 135 degree means less force required to remove metal, compared with lower angles like 90° and 118°.
