Features:* .* For electric drills, hand drills, angle grinders * Application:Dry/wet drilling porcelain tile, granite, marble, stone, masonry, brick and more * Features: fast and smooth drilling, long lasting, chip-resistant, crack-resistant, reduced heat generation, better finish * Fast and smooth drilling * Long service life * Less chipping * Minimizing any cracks * Less material loss * Less fabrication HeatSpecifications:* Material: Diamond* Color: Gold* Diameter (Approxi.): 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,25mm,28mm,30mm,35mm,40mm,45mm,50mm,55mm,60mm,65mm,70mm,75mm,80mm,85mm,90mm,95mm,100mm* Total Height (Approx.): 60mm* Diamond Height (Approx.): 15mmPackage Contents:1 Pc. Diamond core drill bits