CRL 2" Tapered Plug for Suction Base Drilling Rings Expanding Foam Sealants & Dispensing Guns They are available in three

They are available in three thicknesses 1/16"

Built-in Water Coolant Chuck

For Glass Up to 3/4" (19 mm) Thick

exterior insulated finish systems

CRL 2" Tapered Plug for Suction Base Drilling Rings Expanding Foam Sealants & Dispensing Guns They are available in threeUse 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. Diameters are measured inside the ring. Product Warning: Always wear the proper safety gear