CSPARKV 70mm Blue Gray Drill Bits Tungsten Carbide Wood Hole Saw Auger Opener Woodworking Hinge Hole Drilling Reaming Bit Cutter

Specifications:

Drilling diameter: 70mm

Shank dimension: 9.7mm

Overall length: 80mm.

Applications: Can be used for drilling holes on plastic and wooden articles, furniture and door hinges. Used for cutting wood, plywood, solid wood boards, MDF, plastics and fiberglass, etc.

Features: Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, no burrs and durable use. Arc curved head design for easy chip removal and more efficient perforation

How to use: For bench drill, vertical drill, hand-held electric drill, impact drill, CNC cutting machine and other drill press. Processing hard materials such as Hardwood needs water injection to improve the accuracy and quality of drilling and to extend the service life of the hole opener.

Warm tips: Can not drill metal and non-ferrous metal, otherwise the hole opener will be damaged quickly. Before drilling, make sure there are no nails or other metal objects in the wood to avoid damage to the drill bits. The cutting edge and tip of the hole opener should be sharpened in time.