1This is a set of sharpening shank tools, which are used for polishing and grinding 2Made of strong and harden alloy, these sharpening shanks are of high hardness, very durable, and can stand longtime wear and tear 3The 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 4Comes with 50pcs a set, so it is practical and economical 5It has a wide applications, which mainly used for polishing or modelling on the surface of the plastic, metal and wood, or other situations