Rugged and durable : Diamond chainsaw sharpener is made of high-quality carborundum particles and uses titanium plating process to extend its service life   Multi-size application : Three sizes of timberline chainsaw sharpener are applicable to 5/32inch electric saws, 3/16inch small oil chain saw wheels, 7/32inch large oil chain saw wheels   Easy to use : The tail diameter of chainsaw sharpener bits is 3mm, which is suitable for most tools and convenient for polishing without removing the chain   Sufficient quantity : 3 sizes - 5/32inch, 3/16inch, 7/32inch (4.0mm, 4.8mm, 5.5mm), 10pcs for each size, 30pcs in total   Widely used : Suitable for polishing and carving, such as sculpture, jade, precious stone, parts, etc      Name: Chainsaw Chain Grinding Head   Material: Corundum   Color: Gold   Shank diameter: 3mm   Applicable tools: electric grinding machines, electric drills, and other electric tools   4.0mm suitable for electric chain saws, for 3/8 chains (22 blades with 45 sections; 29 blades with 59 sections or less)   4.8mm suitable for small chain saws, used for 325 chains (32 blades 64 sections; 36 blades 72 sections; 38 blades 76 sections), large 3/8 chains (33 blades 66 sections; 34 blades 68 sections; 36 blades 72 sections)   5.5mm suitable for large chain saws, used for 404 chains (32 blades and 64 sections)   Usage: Mainly used for polishing chain saws, but also suitable for polishing other metals, jade, glass, etc      Package Contents:   30pcs in total (3 sizes - 5/32inch, 3/16inch, 7/32inch 4.0mm, 4.8mm, 5.5mm)   10pcs for each size