CRL 5/8" Brass Tube Drill and Head PDT Belgian Series Metal Bond Diamond Drills These CRL Anti-Walk Blocks are

These CRL Anti-Walk Blocks are designed to prevent the glass from "walking" out of the glazing pocket by providing a positive stop in each vertical tube

All surfaces must be properly cleaned

foam or butyl tapes

Adco: B-100

Weathering

CRL 5/8" Brass Tube Drill and Head PDT Belgian Series Metal Bond Diamond Drills These CRL Anti-Walk Blocks areBrass Tube Holds Abrasive Better Cuts Faster and Cleaner Than Steel Tubes The CRL Brass Tube Drill offers you a combination of quality drilling with easily replaceable parts. The brass material grabs the CRL Silicon Carbide Abrasive Grain better than steel, so you can rapidly drill a cleaner looking hole. Because the tubes and heads are separate entities, you need only replace the part that has worn out. This way, you save money because you don't pay