Glass drilling bit set

Glass drill bit chamfering sleeve, sintering machine drill matching chamfering tool, glass drilling machine drill bit sleeve, complete specifications

6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm,14mm,mm,16mm,17mm,18mm,20mm,22mm,40mm,42mm,45mm,50m,30mm,60mm,20mm no-grind chamfering sleeve, 12mm no-grind chamfering sleeve, 25mm, 5mm chamferng sleeve, 22mm no-grind chamfering sleeve, 15mm no-grind chamfering, 10mm no-grind chamferinsleeve, 21mm