Brccee AC 60 Pcs Diamond Burr Bits Drill Kit Glass Gemstone Metal for Craftsman Engraving Carving Rotary Tool 1-8" Shanks

Features: Quantity: 60 pcs Diamond Burrs Bits, which includes 20 assorted shapes Size: 1/8 inches(3.175mm) Shank Package: 3 Plastic boxes packaging, easy to carry and store Wide application: Suitable for working on glass, metal, stone, ceramic, wood, plastic for fine detail work, cutting, engraving, carving, touch-up and finishing. Advantages: If you just starting out or practicing on a new material these are a good place to start. With the variety you'll be able to learn what each tip does first hand. The cylindrical bits work great for grinding details in glass, like very tight concavities that wouldn't be possible with a standard grinder. The spherical burrs are also great for drilling holes in glass. The conical tips work fine for etching/engraving. Attention: Wet drilling only. The diamond coating is very thin. They work best at medium-low to medium speeds on my rotary tools and it is better not to take any abuse.