Comprehensive Set with Multiple Sizes: you receive 12 pieces of cylinder cone shape carving burr sets in 12 different sizes, including 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, 2.0 mm, 2.2 mm, 2.5 mm, 2.7 mm, 3.0 mm, 3.5 mm, and 4 mm, the set caters to your diverse needs and be your dependable partner in different art projects Convenient Storage and Portability: along with the jewelry making stone setting burs, you receive a sturdy plastic storage box; This box ensures easy portability and storage of the diamond grinding bit; The design allows for quick access to your tools, enhancing productivity while ensuring they remain organized and safe from loss Reliable Material: the diamond burr is crafted from quality tungsten steel, known for its durability and sharpness; These robust carving burr sets feature clear imprints and stable high speed performance; Crafted with care and precision, these tools provide excellent carving efficiency and are suitable for detailed work Versatile Use in Tools: the stone carving set is designed with 3/32 inch shank, making it suitable for different tools such as electric drill, grinders and other rotary tools; Regardless of the tool you choose, our carving burr set's versatility ensures seamless operation Versatile and Perfect for Fine Detail Work: the diamond burrs set is perfect for a range of materials, be it silver, stone, jewelry, ceramics, glass, olives, beads, wood and more; Itand 39;s suitable for fine detail work, cutting, engraving, and finishing, providing precision and control for results These jewelry setting tools are suitable for sending to your friends, colleagues, relatives, neighbors, family members and others you care and love, they be happy to receive these gifts. Notes: The color may exist a slight difference due to different screen displays. Pointed items are included, please be careful when using and please keep them away from kids. Colour:Silver Material:Aluminum Alloy Package Contents: 1 set x Cylinder cone shape carving burr sets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.