ITEM: Diamond Vacuum Brazed Chamfer Milling Bit For Grinding Polishing Holes Quantity:1pc only Specification: Brand Name:HIGHDRIL Origin:China Thread:M14 or 5/8"-11 or Hexagonal Shank Diamond Grit:#80 Is_customized:Yes Working Length:35/46/49mm Total Length:45/55/60/65mm Material:Diamond Technology:Vacuum Brazed Certification:CE Certification Application: For chamfering,enlarging,grinding and polishing the formed holes. Feature: 1. Cutting edge high-end vacuum brazing process provides better performance and longer service life for the product; 2. High concentration diamond is vacuum brazed on the surface of the chassis to provide faster enlarging and grinding speed; 3. The #80 fine-grained diamond, through fine grinding, can produce excellent surface effect on the edge of the hole, smooth and clean; 4.Bevel Ease chamfers and stress relieves rough holes in glass, ceramic and porcelain tiles; 5.Very useful to reduce the risk of cracking with standard and large format tiles subjected to tension (ex tightened plumbing, led lights etc); 6.M14 or 5/8"-11 thread is available for angle grinder. Hexagonal handle style is also available for electric hand drill, etc. (but please ensure that all forms of impact or hammer action are closed); 7.Dry or wet use. PLEASE ATTENTION: This is not a drill for drilling. It does not make a hole, but it can chamfer,enlarge, grind and trim the boundary of the formed hole; Tilt moderately, reduce the contact surface, do not press directly, shake slowly and slightly along the force, and the range should not be too large to avoid bouncing. In case of bounce, please don't panic and adjust the operation according to the guide;