Dry Diamond Drill Bits Set - FOCSTOL 4pcs 6/6/8/10mm Diamond Hole Saw & 1pc 6mm Carbide Drill with Triangle Shank for Porcelain Tile Ceramic Granite Marble

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  • Cross Helix Carbide Drill Cross Helix Carbide Drill sloves the problem of diamond bit drifting and walking. Provide more precise positioning and easier drilling (Attention This is not a core bit for drilling).
  • Recommended Machine Corded Drill, Cordless Drill, Benchtop Drill. Recommended speed 2000-5000RPM; Faster the RPM, longer the drill bit's working life. When use Angle Grinder, please install angle grinder drill chuck
  • Cooling Wax & Vacuum Brazed Technology The inside of drill bits are filled with cooling wax, help heat dissipation and chip evacuation. Dry drilling without water, very convenient. Vacuum brazed technology and high-quality diamond grains provides fast and smooth drilling, longer working life

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