Diamond Hole Saw, 1", 1 pc

Diamond Hole Saw, nice quality

This works well for us. Its 25mm diameter (under 1") is right for our application, boring out undersized fiberglass tubes. The course abrasive grit cuts well, but needs air or water to keep it from clogging up since we're boring 5" deep.

Worked great for drilling glass good product drilled 5/16 thick glass without any cooling aids