3000 Grit Polishing Stone + Screwdriver Blade Holder Watchmaker Repair Tool Sharpener & Polished Stone Application This product is suitable for cold-hardened steel, alloy steel, precision steel, glass, ceramic, quartz, and so on. It is suitable for various watch repair tools, such as screwdrivers, files, tweezers, and so on. It can also be used for grinding and trimming other precision mechanical tools. Specification Material: Ruby, Copper Color: Pink, Silver, Gold Process: Polishing Specifications: 3000 Mesh Sharpening Stone Size: 100*50*12mm/3.93*1.96*0.47in Sharpener Holder Size(D*H): 22*45mm/0.86*1.77in Holding Hole Diameter: 5.8mm/0.22in Package Size: 11*6*3cm/4.33*2.36*1.18in Gross Weight: 0.37kg/0.82lbs Net Weight: 0.35kg/0.77lbs Package Included 1* Sharpening Stone 1* Watch Repair Screwdriver Blade Sharpener Holder Notes 1.Please note that the watch repair screwdriver is not included. 2.Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before ordering.