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Drill bit Proline HSS 7.0 mm – high-speed steel metal bit, straight shank
Drill bit Proline HSS 7.0 mm – high-speed steel metal bit, straight shank
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Drill bit Proline HSS 7.0 mm – high-speed steel metal bit, straight shank
Leave your address - as soon as the price of the product goes down, you'll know about it right away
Drill bit Proline HSS 7.0 mm – high-speed steel metal bit, straight shank
Drill bit Proline HSS 7.0 mm – high-speed steel metal bit, straight shank
Proline HSS 7.0 mm drill bit for metal, made of high-speed steel, suitable for handheld drills and drill presses. The bit has a straight (cylindrical) shank and a 135° point angle with adjustable relief for precise drilling in steel and other hard materials. Diameter 7 mm, working length 69 mm, overall length 109 mm.
The HSS construction provides high wear resistance and heat tolerance during prolonged drilling in metal. A 135° point angle with adjustable clearance improves centring and reduces walking on the workpiece, while the straight shank ensures compatibility with standard chucks. The specified working and overall lengths give stable engagement and control for deeper holes.
Secure the drill bit in a suitable chuck, ensuring the straight shank is fully seated and tightened. Select appropriate drill speed and apply cutting lubricant when drilling metal to reduce heat and extend bit life. Start drilling with light pressure to ensure correct centre positioning, then increase feed steadily. Withdraw periodically to clear chips when drilling deep holes.
For best results on steel, use moderate speeds and cutting fluid; for thin or soft metals, lower feed and higher speed to prevent grabbing. Inspect the bit for wear before use and replace if the cutting edges become blunt.
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