Uxcell High Speed Steel Lengthen Twist Drill Bit 10.5Mm Fully Ground Black Oxide

The product is made of high-speed steel, and the surface is black oxide. Smooth surface finish, long service life. Suitable for wood, malleable iron, aluminum, plastic etc. Great replacement for your dull drill bit to improve work efficiency. Straight shank design is more suitable for many electric drills (here is not included). Specification: Shank Type: Round Shank Tool Flute Type: Spiral Rock Well Hardness Grade: 63-66 HRC Type: N Type 120 ° Twist Drill Bits Diameter: 10.5mm / 0.41-inch Material:M2 (High-Speed Steel6542) Shank Diameter: 10.5mm / 0.41-inch Total Length: 185mm / 7.28-inch Drill Bit Length: 95mm / 3.74-inch Package Content:1 Pcs x High-Speed Steel Twist Drill BitNotice: Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage. When using a hand-held electric drill, pay attention to speed adjustment. The recommended work speed is 100-1000r/min. The larger the drilling diameter, the slower the drilling speed should be chosen. When the chip evacuation has problem, go back and remove the chips in time.