Long Taper Drill Taper Shank Long Twist Drill HSS6542
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).
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.
Strong heat treatment toughness, wear resistance and durability, wide application
Reduce drilling friction coefficient, high precision, smooth hole wall
