Set of 7 straight cutters, 8mm shank groove cutter, wood drill bit, cutting diameter, wood router bit with 8mm shank for woodworking 6/8/10/12/14/18/20mm. High quality material Made of solid hardened steel, durable. High precision and high strength. High quality and sturdy - Industrial grade router bit, high quality carbide router bit with brazing for maximum strength. Product features Stable precision, fine manufacturing, durable rust, clean cutting, smooth rotation, fast operation, significantly improve service life. The cutting material has no burrs. Professional woodworking tools 7 types of cutting heads for different applications to meet a variety of cutting needs. Mainly used for cutting and smoothing various materials such as wood, plywood, MDF and other wood composite materials, etc. Features: Materials: hardened steel frame. Diameter shaft length: approx. 8 mm. Head diameter: 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 18 mm, 20 mm. Contents: 7 x straight router bits (6 mm, 8 mm, 10 mm,