CRL 1-3/8" Metal Bond Diamond Core Drill Bit - Straight (Glass & Tile)

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

CRL PD and PDT Series Metal Bond Diamond Drills — SKU PD138

These Italian-made metal bond diamond drills use a special diamond-and-bronze bond engineered for maximum performance in glass cutting. Metal bond drills deliver the longest life of any diamond drill—typically 1,000–2,000 holes in 1/4" (6.4 mm) glass with proper maintenance and periodic use of a wet sharpening stone to expose fresh diamonds. The full 3/8" (10 mm) diamond-filled cutting surface cuts faster, runs cooler, and extends tool life compared with other styles, making them ideal for high-volume glass drilling and glass fabrication production lines.

The PD Series features an extra-long 1-3/8" × 3/8" (35 × 10 mm) shank for a positive grip. The PDT Series uses Belgian-style mounting threads (1/2" / 12.7 mm gas thread), compatible with most U.S. and European glass drilling machines and popular for both portable units (such as the CRL AMZ1) and production equipment.

NOTE: Always wear proper safety gear (gloves and eye protection) when drilling glass. Work 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.

Order PD138 today for reliable, long-life glass drilling performance.