Features: 1.OE number is 66785. Ensure proper piston ring end play, and can avoid excessive gaps. 2.Can cut chrome?plated or stainless steel piston rings quickly and accurately. 3.High?quality hard metal grinding wheel, strong and durable, not easy to damage. 4.Faster response, lower cost, easy to install, and can be easily installed on any workbench. 5.Has a wide range of applications and is suitable for the gap adjustment of various precision rings. Specification: Item Type: Piston Ring Filer Tool_x005F_x000D_ Material: Hard metal_x005F_x000D_ OE: 66785_x005F_x000D_ Application: Suitable for all kinds of precision ring adjustment clearance Note: 1. Please double check the part number of your item, matching information is for reference only._x005F_x000D_ 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!