Specifications: Drill diameter: 70mm; Shank dimension: 10mm; Drilling depth: 51mm; Total length: 85mm. Hexagonal band, carbide strawberry and solid steel solid steel. Rotational speed (recommended): 1200-6000 RPM, feed rate (recommended): 8-12m/min. Applications: can be used to drill holes on pallets and wooden objects, furniture and door hinges. Used for cutting wood, plywood, solid wood planks, MDF, plastic and fiberglass, etc. The Forstner drill is designed for common functions: Tungsten carbide cutting point with special heat treatment for a sharp cutting edge, high hardness, without burrs and durable. Curved arc design for easy chip removal and more efficient perforation. Handling: For workbench drill, vertical drill, hand drill, impact drill, CNC cutting machine and other column drills. The processing of hard materials such as hardwood requires water to improve the accuracy and quality of drilling and to extend the life of the drill. The crown will be damaged quickly. Before drilling, make sure there are no nails or other metal objects in the wood to avoid damaging the Forstner drill. The drill's cutting edge and tip must be sharpened in time.