CRL 2-1/4" Belgian Thread Electro-Formed Diamond Drill Bit for Glass

• High-production electro-formed diamond drill for glass
• Extended work life for repeated drilling runs
• 1/2" (12.7 mm) diamond matrix depth
• Two mounting styles: Straight shank or Belgian type (1/2" gas thread)
• HBT Feature: Belgian mount (1/2" gas) — SKU HBT214

These CRL Electro-Formed Diamond Drills are thin-walled with a 1/2" (12.7 mm) deep, multi-layer diamond matrix and bonding designed specifically for fast-cutting, high-production glass drilling. Use the CRL DCD Series for an extra-long 1-3/8" x 3/8" (35 x 9.5 mm) diameter shank for a positive grip; choose the CRL HBT Series (Belgian mount / 1/2" gas thread) for compatibility with many U.S. and European glass drilling machines.

These bits deliver outstanding results when used in precision, production-type drilling presses on flat (plate) glass only. Because the wall is very thin, they are EXTREMELY FRAGILE — never perform freehand drilling. Stabilize when necessary with a GDB1 or GDB2 Glass Drilling Base; avoid hand drills without proper support. Regular dressing with a dressing stone before each use will substantially increase cutting performance for electro-formed diamond drills.

Safety & handling: Handle with care. Use on flat, horizontal surfaces only. Always wear gloves and eye protection. Use a Ground Fault Circuit Interrupter (GFCI) when operating powered tools with water or coolant. Failure to follow precautions can result in operator injury and may void the warranty.


Order SKU HBT214 today for precision, high-production glass drilling — contact CRL or add to cart now.