FOCSTOL Diamond Drill Bits 32 mm – 2 Pieces Diamond Crown Drill Bit with Round Handle for Porcelain Stoneware Ceramic Granite Marble Quartz

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• Dimensions: diameter 32mm; total length 65mm; diamond height: 10mm; diamond grit number: 40/50; round shank; handle diameter: 10mm
• Application: Dry or wet drilling, ceramic tiles, ceramics, marble, granite, quartz, man-made stone, etc. Wet use will extend working life. Design with round handle for stable tightening, smooth and easy drilling
• Design with U-grooves: design with 4 U-grooves, ideal for heat dissipation and residue removal, with greater efficiency and better performance
• Vacuum welding technology: vacuum welding technology and high-quality diamond grains offer fast and smooth drilling, longer working time
• Recommended machine: power drill, cordless drill, bench drill. Use a manual electric drill: recommended speed no lower than 2000 RPM; The faster the number of revolutions, the longer the lifespan of the drill bit. When using the angle grinder, please install the angle grinder drill chuck