3PCS Vacuum Brazed Dry Diamond Drill Bits Set (5/6/8mm) - Hex Shank Core Bits for Granite, Marble, Tile & Concrete - Perfect for DIY Home Renovation & Professional Stone Installation Projects

Due to manual shooting, there will be deviations between the actual object and the picture, but it will not affect the use effect.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

High speed steel construction provides ultimate durability, the cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.

Wax inside for cooling, Dry drilling

Use a suction cup guide to enable an accurately positioned hole, Alternatively place the drill at a 45 degree angle.

for drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic.....

Applying excessive pressure will not make the bit drill faster but will create excessive heat and subsecuently reduce the efficiency and life time