DT DIATOOL Diamond Beveling Chamfer Bit 25mm for Tile Porcelain Ceramic Granite Marble Existing Holes Enlarging Polishing Shaping Trimming Repairing

Specification: Dia 25mm: total length 35mm; workable length 25mm; M14 thread; Grit #80; Top angle 53 degree. Not for drilling holes, but designed to enlarge, shape, polish, clean, trim, finish, round or bevel existing rough holes of marble ceramic porcelain tiles granite. Recommended machine: M14 thread angle ginder. Recommended RPM:6000. Max RPM:11000. If you need to mount it on a hand drill, please purchase the adapter separately or choose our hex shank diamond chamfer bit directly. Please note that if you use it on a hand drill, please do not use the hammering mode and keep the drilling speed above 2000RPM. Dry or wet use. For dry use, please bring your protective gear to protect your eyes and mouth from dust. Wet use is less dusty, more conducive to heat dissipation, and can extend the life of the product wet use. Vacuum brazing technology keeps grit 80 diamonds more exposed for better working effect.