Drill bits sit outside the edging line itself: sintered diamond drill bits handle drilling in glass, ceramic and stone, and the wear-resistant working layer keeps the hole edge clean. Shanks come in three types matched to the machine: straight and taper shanks are 8 mm as standard, 10 mm on request; threaded shanks follow 1/2″ G, with threaded bits 75 mm long as standard and 80–95 mm to order. Larger diameters are made to drawing.
Common diameters 3–150 mm with a sintered diamond working layer. Straight and taper shanks 8 mm, 10 mm on request; threaded 1/2″ G, 75 mm standard and 80–95 mm to order. They suit glass, ceramic and stone; special diameters to drawing.