【Materials】Stone carving bits are made of diamond particles, durable and sharp cutting
【Sizes】 Bowl shape carving head design and includes 5 sizes: 8mm/10mm/12mm/14mm/16mm
【Easy to use】: All of diamond burs are 1/8'' shank fits rotary tools, drill, grinder and pneumatic power tools
【Application】: Use for carving, engraving, polishing, Suitable for stone, agate, silver, rock, glass etc
【Package contents】: 10 pieces 1/8'' shank bowl shape diamond burr stone carving bits, Note: wet or dry using ! for long-service-life, recommended to cool with water when you using