Features High Quality Material: The drill is made of high quality high speed steel, with high hardness, stable performance, sharpness and durability. Spiral Design: Spiral chip removal design, smooth chip removal, smooth and sharp grooves, fast cutting, and high drilling efficiency. 118 Degrees: The drill is designed with a sharp angle of 118°, which can quickly and accurately drill, saving time and effort. Sharp Cutting Edge: The cutting edge of the drill is finely ground and sharp to meet different cutting precisions. Scope of Application: suitable for iron, aluminum, copper, stainless steel, high speed steel, manganese steel, and various quenched steel parts. Specification: Item Type: Drill Bit Material: High Speed Steel Blade Diameter: Approx. 22.5mm/0.89in Shank Diameter: 1/2 Inch (12.7mm/0.50in) Drill Bit Length: Approx. 150mm/5.91in 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 allow 1‑2cm/0.4‑0.8in error for manual measurement Package List 1 x Drill Bit