Specs: Description: 1/4In Grinding Wheel , Designed for use with TriLink’s Professional Electric Chain Grinder; compatible with other brands , Precision engineered for smooth and efficient sharpening , Provides precise sharpening; eliminating guesswork , A sharp chain is a safe chain; check chain frequently and sharpen as needed , Recommended for use by professionals with appropriate eye protection , TriLink additionally offers several handheld sharpening tool options Compatible With/Replacement For: For use in sharpening chain