This stone drill bits set is used for drilling holes in glass， marble， tile， stone and so much more.<ul><li>Application: Porcelain Tile， Ceramic Tile， Marble， Granite， Concrete， Stone.</li><li>Numbers of item: 12</li><li>Material: Tungsten steel</li><li>Stone drill: 5*110mm， 6*110mm， 6*160mm， 10*160mm， 12*210mm， 14*200mm， 16*210mm， 18*310mm， 20*450mm(Altogether 9pcs)</li><li>Sharp stone drill: 14*250mm</li><li>Flat stone drill: 20*250mm</li><li>U-sharp stone drill: 14*250mm</li></ul>This stone drill bits set provides smooth and accurate drilling in ceramic tiles， marble， china， mirrors and glass. These bits are ideal for drilling holes in bathroom tiles， or wall mirrors. They fit any SDS Plus drill. The heat-resistant steel shank and diamond coated tip resist fatigue cracks caused by tension， heat， pressure， RPM and vibration. All tools come in a sturdy storage case for easy transport. Delivery includes 9 x stone drill， 1 x sharp stone drill， 1 x flat stone drill and 1 x U-sharp stone drill.<div id="descriptionImg"><img class="lazy" src="//agdetail.image-gmkt.com/m430/262/332/842332262/img/agdetail.image-gmkt.com/262/332/842332262/img/img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/1/K/140271UK/140271UK-1-Z12h.jpg" data-original="//agdetail.image-gmkt.com/m430/262/332/842332262/img/agdetail.image-gmkt.com/262/332/842332262/img/img.tomtop-cdn.com/product/xy/2000/2000/p/gu1/1/K/140271UK/140271UK-1-Z12h.jpg"></div>