- ćSizećTotally 5pcs/set: Diameter 1/4”(6mm), 5/16”(8mm), 3/8”(10mm), 1/2”(12mm); Total length 65mm; Diamond height 8mm; Diamond Grit #50/60; Hex shank
- ćApplicationćDry or Wet drilling Ceramic Porcelain Tile Marble Granite Quartz Artificial Stone, etc. Wet using will prolong the working life. Hex shank design for stable clamping, smooth and easy drilling
- ćCooling WaxćThe inside of drill bits are filled with cooling wax and spiral grooves design, help heat dissipation and chip evacuation. Dry drilling without water, very convenient
- ćVacuum Brazed TechnologyćVacuum Brazed Technology and high quality diamond grains provides fast and smooth drilling, longer working life
- ćRecommended MachinećDiamond dry drill bits suitables for Corded Drill, Cordless Drill, Benchtop Drill. Use electric hand drill: Recommended speed not less than 2000RPM; Faster the RPM, longer the drill bit’s working life. When use Angle Grinder, please install angle grinder drill chuck