✅ Good Performance and long life
✅ Excellent for making clean and accurate hole on glass, tile, granite and marble
✅ Works better with a electric drill (not included)
✅ Great for Home, Hobby, Craft, Construction, etc.
✅ Use: apply to job openings fast glass, plastic sheeting, wood and other products.
✅ SIZE: 6/8/10/12/14/16/18/22/26/32mm
These diamond drill bits made of high-speed steel that is durable and have a long sevice life,which are high quality and good performance that excellent for making clean and accurate hole.
Size: 6mm/0.23", 8mm/0.31", 10mm/0.39", 12mm/0.47",
14mm/0.55", 16mm/0.62", 18mm/0.7", 22mm/0.86",
When you using the diamond drill bits, please use lubrication (water),otherwise the diamond core drill will burn.Not for use on Concrete or for depths beyond about 1/2".