Specs: Description: 5/32In Chainsaw File Bulk Box , Designed for use with the TriLink 5/32″ filing guide sharpening system and compatible with other brands , Precision engineered for smooth and efficient sharpening , A sharp chain is a safe chain; check chain frequently and sharpen as needed , Includes 2 replacement round files , Designed and engineered for consistent, fast, hand sharpening , Each round file is manufactured with a double-cut design to resist clogging Replaces OEM Numbers: Oregon: 5/32 in. Round Files Compatible With/Replacement For: For use with sharpening all 3/8″ LP pitch saw chain; TriLink S chains