ITEM NAME:10x Chain Saw Sharpening Stone 3mm Shank 4mm Head Grinding Stone Round Tip Z Features: Good quality: 100% brand new and good quanlity, the hardness of the grinding wheelhead is high, stand wear and tear. Scope of application: mainly used for polishing or modelling on the surface of the metal and wood, or any other situation. Homogeneous granularity: the granularity of grinding wheelhead is homogeneous, the abrasive grains are not easy to fall off, so that the service life is long. Specification: Material: emery & alloy Shank Diameter: 3mm The total length: 46 mm The effective length of grinding wheel: 13 mm Package Included: 10pcs Straight shank grinding wheel Features: Good quality: 100% brand new and good quanlity, the hardness of the grinding wheelhead is high, stand wear and tear. Scope of application: mainly used for polishing or modelling on the surface of the metal and wood, or any other situation. Homogeneous granularity: the granularity of grinding wheelhead is homogeneous, the abrasive grains are not easy to fall off, so that the service life is long. Specification: Material: emery & alloy Shank Diameter: 3mm The total length: 46 mm The effective length of grinding wheel: 13 mm Package Included: 10pcs Straight shank grinding wheel.Homogeneous granularity: the granularity of grinding wheelhead is homogeneous, the abrasive grains are not easy to fall off, so that the service life is long. 10pcs Straight shank grinding wheel. The effective length of grinding wheel: 13 mm.