1.Shank diameter:6mm, 6.35mm, or upon request 2.Coating:nickle, chrome, titanium available 3.Packing:5pcs/set, or upon request Features:1.Shank diameter:6mm, 6.35mm, or upon request.2.Coating:nickle, chrome, titanium available.3.Packing:5pcs/set, or upon request.4.Used for shaping, smoothing and removal hardened steel, stainless steel, fired ceramics, plastic and hardwoods.Advantages of DUOLING1. ...