[Package Content]- 1 Pcs 3mm drill dia. 160mm total length high-speed steel parabolic flute drill bit.. [Strength and Hardness]- Made of high-speed steel. HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life.. [Parabolic Flute]- The parabolic flute adopts a wide groove structure to increase the chip flow rate and ensure fast and easy chip removal and rapid penetration.. [Twisted Design]-With the twisted design, it can improve cutting accuracy by centering the tip. It can avoid displacement of the drill bit during work, and at the same time remove debris and particles faster and easier..
