10pcs Chainsaw Sharpener Whetstones Polishing Grinding Tool for 4mm Chainsaw Sharpener Description: < p>Product name: grinding wheel grinding head Shape: cylindrical Diameter: < p>4mm (suitable for small 8 chainsaw chains) Shank diameter: 3mm Material: jade in chrome steel Suitable for: electric grinder, lithium electric grinder Mesh number: about 120-150 mesh< /p> Product use: It is mainly used for grinding chainsaw chains, and is also suitable for grinding and polishing jade. p> Mill. After polishing, the jade sculpture piece is finely ground, and the precision and efficiency of machining are far Higher than traditional oilstone polishing < p>Package Included: 10 x grinding wheel grinding head Sold by grid cool store