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Drill Bits DeWalt HSS E Cobalt 11.5 mm BD-DT4946 set of 5
Drill Bits DeWalt HSS E Cobalt 11.5 mm BD-DT4946 set of 5
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Drill Bits DeWalt HSS E Cobalt 11.5 mm BD-DT4946 set of 5
Leave your address - as soon as the price of the product goes down, you'll know about it right away
Drill Bits DeWalt HSS E Cobalt 11.5 mm BD-DT4946 set of 5
Drill Bits DeWalt HSS E Cobalt 11.5 mm BD-DT4946 set of 5
DeWalt HSS E Cobalt 11.5 mm BD-DT4946 drill bits come as a set of five industrial-grade twist drills designed for metalworking. Manufactured from high-speed steel with added cobalt alloy, these 11.5 mm diameter bits provide increased heat resistance and extended wear life compared with standard HSS drills. The straight-shank design fits standard drill chucks and is intended for professional and workshop use where consistent hole quality in hard metals is required.
The cobalt-enhanced HSS construction improves hardness and hot hardness, reducing premature wear when drilling stainless steel, alloy steels and other tough materials. Precision ground flutes and point geometry produce accurate, round holes with reliable chip evacuation. Supplied as a practical pack of five, the set offers ready replacements for repeated drilling operations and reduces downtime in professional environments.
Secure the drill bit in a compatible drill chuck, ensuring correct centering and tight clamping. Use a suitable cutting lubricant when drilling stainless steel or other hard alloys to reduce heat buildup and improve tool life. Start at a low speed to establish a pilot and then increase speed within the recommended range for HSS cobalt drills while applying firm, steady feed pressure. Withdraw the bit periodically to clear chips and allow cooling during extended cuts.
For best results, match drilling speed and feed to the material being worked: lower speeds for stainless and hard alloys, higher speeds for softer metals. Use cutting fluid for improved surface finish and longer bit life. Replace bits when wear or chipping reduces hole quality.
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