Diamond Drill Bits 1mm 2mm 3mm 30 pcs Diamond Jewelry Drill Bits for Sea Glass Shells Gem Stones Lapidary Equipment Compatible with Dremel Diamond Drill Bits for Glass Diamond Tipped Drill Bit Burrs

This 30 piece diamond drill bit set appears to have positive reception by customers. The product can be used to cut through a variety of materials including rock, ceramic, porcelain, terracotta, glass, gemstones, marble, and granite. Customers have reported using the bits for drilling holes in sea glass, drilling into quartz, and other crafting projects. The bits work well with Dremel rotary tools, Harbor Freight "imitation" Dremel rotary tools, and micro machines units. However, some customers have reported that the drill bits were bent or broke easily, and some found them difficult to use when drilling into certain materials.