CRL 2-1/2" Metal Tube Drill Setting Blocks & Shims There are center reference marks

There are center reference marks inscribed on the outside of the drill housing for easy lineup of your holes

Always use caution when using this or any other sharp tool

It was designed by a glazier to handle a problem that frequently happens when installing mirror walls

CRL Lift Off 4 is the first biodegradable

CRL 2-1/2" Metal Tube Drill Setting Blocks & Shims There are center reference marksOne Piece Construction Gives Rigidity and Durability The "Old Reliable" Way to Drill Glass CRL Metal Tube Drills are designed for use in our CRL Tripod Drill or similar type drill machine. They work with an abrasive grain such as CRL Silicon Carbide Grain to "drill" holes in glass through rotational abrasion. A coolant (or water) is mixed with the abrasive to form a slurry which is retained by a CRL Rubber Base Drilling Ring. The even and steady