Please allow 1-3mm error for manual measurement; the color of the item shown in the photo may appear slightly different on your computer monitor because the monitor is not calibrated the same.Product Name:Quick-fit/Hexagon Shank Vacuum Brazed Diamond Drilling Bits,Dry drilling for stone masonry ceramic/tileSpecification:Diameter 6mm,8mm,10mm,12mm,14mm,Quick-fit Shank or Hexagon Shank,Maximum drilling depth 30mm,diamond length 10mm6mm,total length 68mm;8mm-14mm,total length 80mm,Quantity:1pc onlyFeature:1.for drilling granite &marblemasonryconcrete tile/ceramic,glass,hard plastic.2.Fast and Smooth drilling,Long life time and Less Chipping 3.Wax inside for cooling,Dry drilling without water4.Very high efficiency,multi-purpose drillingOperation tips:1.Ensure all the forms of percussion or hammer action are turned off.2.Use a suction cup guide to enable an accurately positioned hole,Alternatively place the drill at a 45 degree angle.Drill until the drill bit starts to penetrate the material and then bring the drill up into the upright position and continue3.the tip of the drill bit will become hot,please handle it with care4.Applying excessive pressure will not make the bit drill faster but will create excessive heat and subsecuently reduce the efficiency and life timeNote:Please allow 1-3mm errors due to manual measurementItem color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same
