Features High Speed Steel: High quality HSS material has high hardness, stable performance, sharpness and durability. Spiral Fluted Design: Spiral chip removal design, high efficiency chip removal slot, fast cutting, high drilling efficiency 118° Angle Design: Allows the drill bit to drill quickly and accurately, saving time and effort. Heavy Duty: High speed steel tools are good for most general purpose applications, meet different cutting accuracy. Wide Application: Suitable for iron, aluminum, copper, stainless steel, high speed steel, manganese steel, various hardened steel parts Specification:Item Type: Drill bit Material: High speed steel Shank Diameter: 12.7mm/ 1/2 Inch Cutting Length: 75mm/ 3 Inch Cutting Diameter: 19mm/ 3/4 Inch Uses: Suitable for iron, aluminum, copper, stainless steel, high-speed steel, manganese steel, various quenched steel parts Package List:1 x Drill Bit Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1 x Drill Bit