MOUNTAIN MEN 3-Piece Diamond Drill Bit Set (5mm, 6mm, 8mm) - Vacuum Brazed Dry Diamond Core Bits with Hex Shank for Granite, Marble, Tile, Concrete - Perfect for Home Renovation, Stone Crafting & DIY Projects

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.3pcs Vacuum Brazed Diamond drilling core bits Dry drilling for stone and masonrySpecification:Hexagon Shank, Maximum drilling depth 30mm,Diamond length 10mm,Available size: diameter5mm, 6mm, 8mm5mm and 6mm, total length 68mm;8mm,total length 80mm,Quantity:3pcs (Dia 5mm + 6mm + 8mm)Feature:Wax inside for cooling, Dry drillingfor drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic.....Very high efficiency, multi-purpose drillingUse 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 continue.the tip of the drill bit will become hot, please handle it with careApplying excessive pressure will not make the bit drill faster but will create excessive heat and subsecuently reduce the efficiency and life timeLong life drillingNote: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