uxcell 6542 High Speed Steel Straight Shank Twist Drill Bit Set - 8.6mm Diameter, 125mm Length, Black Oxide Coated (2-Pack) for Metal, Wood, and Plastic Drilling - Perfect for DIY Projects and Professional Workshops

Description:1. Made of high-speed steel, with great toughness and hardness, not easy to break, easy chip removal, the drill quenching treatment, improve the hardness of use. Surface black oxide treatment, not easy to rust.2. This twist drill is proper for electric drill, hand electric drill and impact electric drill. Suitable for Stainless steel, iron, copper, aluminum alloys, wood, plastic drilling and carving.3. Spiral flute design for quick cleaning of chips. The sharp cutting edge provides a smooth cut without glitches. Chip removal is not easy to stick to the tool.4. Adapt to several kinds of cooling conditions, for example oil mist, water, oil, air cooling.Specification:Shank Type: Round ShankTool Flute Type: SpiralRock Well Hardness Grade: 63-66 HRCMaterial: High-Speed Steel 6542Twist Drill Bits Diameter: 8.6mm / 0.34-inchDrill Bit Length: 80mm / 3.15-inchShank Diameter: 8.6mm / 0.34-inchTotal Length: 125mm / 4.92-inch2 x High-Speed Steel Twist Drill Bit

[Specification]- Twist Drill Bits Diameter 8.6mm / 0.34-inch, Drill Bit Length 80mm / 3.15-inch, Shank Diameter 8.6mm / 0.34-inch, Total Length 125mm / 4.92-inch, 2 x High-Speed Steel Twist Drill Bit

[Strength and Hardness]- Made of high-speed steel, with great toughness and hardness, not easy to break, easy chip removal, the drill quenching treatment, improve the hardness of use. Surface black oxide treatment, not easy to rust.

[Professional and DIY Use]- This twist drill is proper for electric drill, hand electric drill and impact electric drill. Suitable for Stainless steel, iron, copper, aluminum alloys, wood, plastic drilling and carving.

[Twisted Design]- Spiral flute design for quick cleaning of chips. The sharp cutting edge provides a smooth cut without glitches. Chip removal is not easy to stick to the tool.

[Note]- Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage