4.0mm Diamond Wire Hollow Core Drill – 20pcs for Glass, Stone & Ceramic Flexible Diamond Sanding Belt Precision Cutting Performance

Precision Cutting Performance

Usage Tips

accurate holes with minimal chipping or cracking

and light surface imperfections on both curved and flat surfaces

even in high-volume production settings

4.0mm Diamond Wire Hollow Core Drill – 20pcs for Glass, Stone & Ceramic Flexible Diamond Sanding Belt Precision Cutting PerformanceDiamond Drill Bits are precision tools for fine detailing and material processing. Discover the versatility of diamond drill bits, designed with durable diamond grit for aggressive cutting, precise shaping, and long lasting performance. Available in multiple gritscoarse (40,60,80,120) for rapid material removal, and fine(240,600,1200) for detailed engraving and polishing. These tools suit lapidary artists, jewelers, sculptors, and precision craftsmen.