Product Details:

Instantly Creates a Coolant Dam. Slanted Wall Helps Stop Splashing.

Cleans Easily - Won't Rust!

Use this handy CRL Suction Base Ring for drilling glass whenever you use coolant or carbide grain.

Made of a special Dual Durometer rubber compound 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 because of the material it is made from.

Easy to use: just wet the base with coolant or glass cleaner and press onto the glass. Important Note:

Always wear the proper safety gear including gloves and eye protection when drilling glass.

Work should be performed on a flat, horizontal surface

Inside Diameter: 4-1/2 in (114 mm)