CRL 3/8 in Metal-Bond Diamond Drill Bit for Glass & Tile

• Designed for high-volume glass fabrication and production drilling
• 3/8" diamond matrix depth (10 mm) for extended cutting life
• Two mounting styles: straight shank (extra-long 1-3/8" x 3/8" shank) or Belgian thread (1/2" gas thread)

CRL PD and PDT Series Metal Bond Diamond Drills (SKU: PD38) use a multi-layer Italian diamond and brass (bronze) bond engineered for high-performance glass drilling. Metal bond diamond drills provide the longest life among diamond drill types—typically 1,000–2,000 holes in 1/4" (6.4 mm) glass with proper wet sharpening and maintenance. These drills cut faster and run cooler than comparable products, with a full 3/8" (10 mm) deep cutting surface packed with diamonds for superior durability in production environments. Because of the dense metal bond, the drills are more fragile and must be used on flat glass in true-running machines. The PD Series offers an extra-long straight shank for a positive grip; the PDT Series features Belgian-style 1/2" gas threads common on U.S. and European glass drilling machines. Suitable for portable units like the CRL AMZ1 and especially for production equipment.

Safety Note: Always wear appropriate PPE (gloves and eye protection). Drill on a flat, horizontal surface and use a Ground Fault Circuit Interrupter (Cat. No. GF1) when operating electric tools with water or coolant. Failure to follow precautions can result in injury.