Feature
●2 pieces diameter 12 mm vacuum brazed diamond drill bits with hex shank
●Diameter: 12 mm; diamond length: 10 mm; total length: 80 mm; connection: hex shank; maximum drilling depth: 30 mm
●Wax inside for cooling, dry drilling without water for granite marble, masonry, concrete tiles, ceramic
●When drilling, the wax melts to lubricate and cool the drilling surface
●By applying excessive pressure, the drill does not drill faster, but excessive heat is generated and then reduces efficiency and service life
Description