Features: This is a set of sharpening shank tools, which are used for polishing and grinding. Made of strong and harden alloy, these sharpening shanks are of high hardness, very durable, and can stand longtime wear and tear. The wheel heads' even and homogeneous distribution of granularity makes the polishing work just a breeze, and the abrasive grains are not easy to fall off, so that the service life is long. Comes with 50pcs a set, so it is practical and economical. It has a wide applications, which mainly used for polishing or modelling on the surface of the plastic, metal and wood, or other situations. Specifications: Material: Emery, Alloy Color: As Picture Shown Shank Diameter: 3mm / 0.118'' Grinding Head Diameter: 4mm / 0.157'' Total Length: 46mm / 1.811'' Grinding Wheel Effective Length: 13mm / 0.512'' Item Quantity: 50pcs/Set Package Weight: Approx. 215g Package Included: 50 x Grinding Sharpening Tools Features The wheel heads' even and homogeneous distribution of granularity makes the polishing work just a breeze, and the abrasive grains are not easy to fall off, so that the service life is long Comes with 50pcs a set, so it is practical and economical This is a set of sharpening shank tools, which are used for polishing and grinding Made of strong and harden alloy, these sharpening shanks are of high hardness, very durable, and can stand longtime wear and tear It has a wide applications, which mainly used for polishing or modelling on the surface of the plastic, metal and wood, or other situations