Description:

Drill Bit Size: Drilling diameter: 80mm / 3.15", 85mm / 3.35", shank diameter: 10mm / 0.39", Drilling Depth: 52mm / 2.05". Arc curve design head for easy chip-removal, more efficient perforation.. Wide Applications: Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc.. Can not drill metal and non-ferrous metal.. Tungsten Carbide Tip: High hardness and strength, wear resistance, corrosion resistance, heat resistance. Carbide tool offers long tool life and faster cutting speeds than other substrates. Carbide material with good cutting performance, can ensure high work efficiency.. Easy to Use: Suitable for bench drill, vertical drilling machine, CNC carving machine. Processing hardwood or other hard materials should be used with water to improve the quality and accuracy of drilling, and extend the life of the hole opener.. Tips: Maximum speed: 2000rpm. Used on desktop (fixed) equipment, and can NOT be used on handheld power tools (such as hand drill or electric drill). To avoid causing breakage, be sure no nails or other metal objects in wood before drilling. The cutting edge and tip of the opener should be sharpened in time..