Features: High performances alloys burrs set with 10 single/double cut milling heads designs for precisions engraving, trimming, and grinding on metals and marble/stone, and so on. Quality alloys construction ensures exceptionally durability and efficient material removal through grooved channel for rapid chip clearance. Ideal for metalworkers, woodcarvers, and DIYer enthusiasts requiring multiple rotary tool accessories for intricate mold cavities or artistic detailing. Perfectly adapts to rotary tool (1/8" shank) in workshops for jewelry polishing, automotive part refinement, or wood/metal fabrication projects. 6mm cutting diameter heads deliver faster grinding than manual files, offering craftsmen multiple shaping option in clear storage case. Specifications: Material: Alloys Color: As pictures shown. Size: Plastic box size 98x64.5mm/3.85x2.53in Optional Types: A Single Cut, B Double Cut Package Includes: 1 set(10pcs) Grinding Head note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item.