Specifications:Drilling Diameter: 60mm / 2-3/8"Shank Size: 10mm / 3/8"Drilling Depth (Max.): 60mm / 2.36"Total Length: 90mm / 3.54"Shank Type: Hex ShankMaterial: Tungsten Carbide, High-speed SteelFinish: Spray CoatedPackage Content: 1pcs x Forstner Drill BitDescriptions:Make sure there are no nails or other metal objects in the wood before drilling. Do not drill metal and non-ferrous metals. The sprayed coating has a smooth, even surface that resists rust and corrosion. High-speed steel shank with excellent hardness and wear resistance.Heat-treated tungsten carbide tips provide excellent hardness and toughness, wear resistance, heat resistance for long-lasting performance and extended tool life. The center spur helps guide it through wood and ensure accurate start holes.