Forstner Drill Bits 70mm Tungsten Carbide Wood Hole Saw Auger Woodworking Hinge Hole Drilling Bore Bit Cutter Blue Grey

General Description The 70mm tungsten carbide Forstner drill bit is designed for precise drilling of holes in various materials such as wood, plywood, MDF and plastics. Its curved head design facilitates chip evacuation, making drilling more efficient and less prone to clogging. Technical Specifications: Drilling Diameter: 70 mm; Shank Size: 10 mm; Drilling Depth: 51 mm; Overall Length: 85 mm; Hexagonal Shank; Materials: Cemented carbide cutter and hardened steel body; Suggested Rotation Speed: 1200-6000 RPM; Suggested Feed Rate: 8-12 m/min. Compatibility and Accessories: Compatible with bench drills, vertical drills, hand-held electric drills, impact drills, CNC cutting machines, and pillar drills. Usage: For optimal drilling, it is recommended to use water when processing hard materials such as hardwood to improve drilling accuracy and quality while extending the life of the drill bit. It is important not to drill into metallic or non-ferrous materials to avoid damaging the drill bit. Before drilling, check that there are no nails or other metal objects in the wood. The cutting edge and point of the hole saw should be sharpened regularly to maintain their effectiveness.