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Drill Bit Top Tools HSS straight shank 9 mm, set of 5 (60H490)
Drill Bit Top Tools HSS straight shank 9 mm, set of 5 (60H490)
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Drill Bit Top Tools HSS straight shank 9 mm, set of 5 (60H490)
Leave your address - as soon as the price of the product goes down, you'll know about it right away
Drill Bit Top Tools HSS straight shank 9 mm, set of 5 (60H490)
Drill Bit Top Tools HSS straight shank 9 mm, set of 5 (60H490)
Top Tools HSS straight shank drill bit set contains five 9 mm high-speed steel (HSS) drills designed for drilling metal and other hard materials. Each bit has a straight (cylindrical) shank for use in hand drills and drill presses, providing reliable performance for workshop, maintenance, and DIY applications where standard HSS cutting geometry is appropriate.
These HSS drill bits offer consistent hardness and wear resistance suited to typical metalworking speeds, maintaining cutting edges under regular workshop conditions. The straight shank design ensures compatibility with a wide range of chucks and drill holders, while the uniform 9 mm diameter across the set simplifies tool selection for repetitive tasks. The set of five provides multiple replacements for interrupted drilling or extended projects.
Secure the chosen 9 mm drill bit in the drill chuck, ensuring the straight shank is seated centrally and tightened. Mark the drilling point and, where appropriate, use a center punch to prevent bit walking. Select a suitable rotational speed for high-speed steel when working with metal, apply steady pressure and use cutting fluid or lubricant for heat reduction and improved chip evacuation. Withdraw periodically to clear chips and allow the bit to cool when drilling deep holes.
Use appropriate personal protective equipment (safety glasses, gloves) and match drill speed and lubrication to the material. For prolonged life of HSS bits, avoid excessive feed rates and overheating; use coolant when drilling thick or hard metals. Check chucks for secure grip on straight shanks to prevent slippage.
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