DT DIATOOL Diamond Finger Milling Bit 20mm Hex Shank Enlarging Existing Holes of Porcelain Tile Marble Countertop Vacuum Brazed Grinding

Specification: Hex Shank; Diameter 20mm; work length 40mm; total length 65mm; diamond grit #50/60. Application: Please don’t use it for drilling holes. Mainly used for existing holes; For enlarging, reaming, cleaning rough holes or repairing edge. Also can grind a curved chamfer on the edge of the tile. Advanced technology and design: The #50/60 diamond particles cover the work surface, reducing debris and breakage for a better finish. Internal hollow design, more convenient for heat dissipation and chip removal. Recommended materials: porcelain tile, ceramic tile, marble, artificial stone, granite, etc. Machine: Hand drill. Don’t use hammer mode. The speed of hand drills is generally in the range of 2000RPM to 5000 RPM. Please use the product at the highest possible speed within this range for longer service life.