Forstner Drill Bit - [21mm] Tungsten Carbide Auger Opener for Wood Furniture Hinge Woodworking Use, Round Shank, Black

APPLICATIONSuitable for drilling holes on wood furniture. Cuts wood, plywood, solid wood boards. Widely used for drilling flat bottom holes, pocket holes, and overlapping holes. Easily enlarge existing holes and drill any arc of circles. The drill bit is designed for industrial use.ABOUT THIS PRODUCTS- Heat-treated tungsten carbide tip, sharp cutting edge, no burrs, high hardness, impact resistance, smooth cutting, wear-resistant, durable and long service life.- Arc curve design head, easier chip removal, higher perforation efficiency, good for boring concealed hinges and door locks.- Three sharp spurs provide repeatable, clean and precise drilling. The centering spur can accurately center holes.- Solid hardened steel shank for use with bench drills, vertical drill presses, CNC routers. Drilling diameter <40mm, cutting speed (maximum): 2000rpm; drilling diameter ≥ 40mm, cutting speed (maximum): 1200rpm.SPECIFICATIONDrilling Diameter: 21mm / 0.83 InchDrilling Depth: 60mm / 2.36 InchRound Shank Size: 8mm / 0.31 InchTotal Length: 90mm / 3.54 InchMaterial: Tungsten Carbide, 45# Carbon SteelPackage: 1 pack of forstner drill bitTIPS- For desktop (fixed) equipment, NOT for hand-held power tools (such as hand drills, electric drills). Drilling materials must be fixed and the drill bit should be perpendicular to materials.- Only suitable for processing wood or soft non-metallic materials. Make sure there are no nails or other metal objects on the wood before drilling. The cutting edge and tip of the opener should be sharpened in time.- When drilling hardwood or other hard materials, water should be injected to improve the quality and accuracy and prolong the tool service life.

• 1- Package Contents - 21mm woodworking forstner drill bits, use with bench drills, vertical drill presses, CNC routers. Drilling diameter < 40mm, cutting speed (maximum): 2000rpm; drilling diameter ≥ 40mm, cutting speed (maximum): 1200rpm.
• 2- Material - Heat-treated tungsten carbide tip, sharp cutting edge, no burrs, high hardness, impact resistance, smooth cutting, wear-resistant, durable and long service life.
• 3- Application - Suitable for drilling holes on wood furniture. Cuts wood, plywood, solid wood boards. For cutting flat bottom holes, pocket holes, and overlapping holes. Easily enlarge existing holes and drill any arc of circles. The drill bit is designed for industrial use.
• 4- Design - Arc curve design head, easier chip removal, higher perforation efficiency, good for boring concealed hinges and door locks. Three sharp spurs provide repeatable, clean and precise drilling. The centering spur can accurately center holes.
• 5- Usage - For desktop (fixed) equipment, NOT for hand-held power tools (such as hand drills, electric drills). Only suitable for processing wood or soft non-metallic materials. Make sure there are no nails or other metal objects on the wood before drilling.