Drilling Tools High Speed Steel 6542 Extra Long Twist Drill


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The high-speed steel twist drill is a tool for drilling round holes of a work piece by rotating and cutting relative to a fixed axis. It is named because of the spiral shape of the chip flutes, which resemble twists. Spiral grooves have 2 grooves, 3 grooves or more, but 2 grooves are the most common. Twist drills can be clamped on manual and electric hand-held drilling tools or drilling machines, milling machines, lathes and even machining centers. The material of high-speed steel twist drill is high-speed steel (HSS).

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Spiral chip flute design, spiral flute design, easy cutting, not easy to stick to the knife, to achieve high-efficiency processing. The work piece has higher precision and gloss.

 

 

 

Reduce drilling friction coefficient, high precision, smooth hole wall

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Strong heat treatment toughness, wear resistance and durability, wide application


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