CRL 1-1/2" Suction Base Drilling Round Ring Silicone Sealants Joint performance does not change

Joint performance does not change significantly with aging or exposure to weather

The ideal size requires minimal effort and allows a more consistent finish

Digital Display Switches Easily From Fahrenheit to Celsius

An epoxy coated swivel handle rotates

CRL 1-1/2" Suction Base Drilling Round Ring Silicone Sealants Joint performance does not changeInstantly Creates a Coolant Dam Slanted Walls Helps Stop Splashing Cleans Easily Won't Rust! Use our CRL Suction Base Drilling Rings for drilling glass whenever you use coolant or carbide grain. Made of a special rubber compound that wont break the glass if accidentally dropped on it. Easy to use, just wet the base with coolant or glass cleaner and press onto the glass. Four sizes of round rings, plus an oval shaped ring for drilling dual outlets.