Specification: Blank New Material: Non-woven Ceramic Grinding Wheel Diameter (Approx.): 105mm Bore Diameter (Approx.): 22mm Thickness (Approx.): 3.2mm Fit for: 3/8lp & .325 Chain (Depends on the machine) Easy to Install and Operate Non-woven Ceramic Grinding Wheel, Durable Application: For Cutting and Polishing the Edge of the Chain, such as Mill Chain, Gasoline Saw and Chainsaws Package Included:2 x Grinding Wheel Notice:Make sure the grinding wheel is well installed on the machine and wear safety glasses before use. Please allow slight error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual colorPayment1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2) payment must be made within 3 days of placing the order.3) if you are unable to check out immediately after the listing ends, please wait a few minutes and try again, payments must be completed within 3 days. Shipping1.