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Metal Drill HSSCo D338 4.2mm-1pc

Metal Drill HSSCo D338 4.2mm-1pc QUAD EDGE Tip: unique combination of 135dgsplit point and four cutting edges: 135dgsplit point allows for precise & fast drilling start without walking. Four cutting edges create smaller chips to prevent heat build up for longer life.Suitable for drilling high alloy content steels and metals with tensile strengths over 1000 N/mm² like stainless steel.Metal drill bits ground from solid extremely heat resistant 5% cobalt-alloyed high speed steel produced according to DIN 338.3-flat shank from 5 mm for better grip and prevents chuck slippage.Enhanced tapered web: Wider core towards the shank of the drill bit. Strengthens the core to increase overall flute durability.Colour: bronze.Variable flute geometry: For faster material ejection. Helps the bit run cooler and prevent it from burning out faster.