GLASS DRILLING LUBE RING
3" Inside Diameter
Use this handy Suction Base Ring for drilling glass whenever you use coolant.
Made of a special rubber compound Dual Durometer rubber which is harder up top to retain its shape, and very soft on the bottom for the suction lip to create a vacuum. A nice feature of this drill ring is it won't break the glass if dropped on it accidentally, unlike steel rings.
Easy to use: Wet the base with coolant or glass cleaner and press onto the glass. Fill with coolant and start drilling