Features: 100% brand new and high quality Made of high quality material, durable and practical to useAdvantages: sharp Suitable for metal, machinery, wooden products, bearings, etc. Hexagonal shank grinding head, grinding head made of bronze corundum, good texture, strong wear resistance. It is widely used for grinding and engraving workpieces such as jade, jade, ceramic glass, cemented carbide and gems. Exquisite design to increase the contact area, improve grinding efficiency and no dust pollution. Specifications: Material: Brown CorundumCone Color: As the picture shownCone: Approx. 25x44x42x6.3mm/0.98x1.73x1.65x0.24inchCylindrical: Approx. 25x24x44x6.3mm/0.98x0.94x1.73x0.24inch Quantity: 2pcsPackage Included:2x Sanding HeadNote:1. Please allow 1-2mm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.