Drilling Diameter: 60mm / 2-3/8"Shank Size: 9.7mm / 3/8"Drilling Depth: 47mm / 1-7/8"Total Length: 78mm / 3-1/16"Shank Type: Round ShankColor: Green, SilverPackage Content: 1pcs x Forstner Drill BitDescriptions:Do not drill metal and non-ferrous metals. Make sure there are no nails or other metal objects in the wood before drilling. The spray paint finish has a smooth, even surface that resists rust and corrosion.Tungsten carbide tips provide sharp cutting edges, high strength, high hardness, wear resistance, and heat resistance. The forstner drill bit enables precise, fast and clean drilling. Forstner drill bit adopts 45# carbon steel shank, which has good strength, durability and sufficient rigidity.Three spurs help guide it through wood and ensure accurate start holes, reducing slippage.