Feature:1. Possess wide range of applications, suitable for bench drills, milling machines, machining centers2. High-speed steel material have high hardness, of sharpness, wear-resistant and heat-resistant, long service life3. Enlarged chip flute design is beneficial to high-speed operation and accelerate chip removal4. Possess better strength and durability, all-ground spiral positioning with high work efficiency5. The product is special for die steel and stainless steel processing, very practicalSpecification:Item Type: Center Drill BitMaterial: High speed steelSpecification: Approx. 3.5mm / 0.1inShank Diameter: Approx. 8mm / 0.3inBlade Length: Approx. 4.8mm / 0.2inFull Length: Approx. 50.2mm / 2in Package List:10 x Center Drill Bit