Compatible with Dremels,Compatible with Proxxon Grinder for Chainsaw,suitable for metal polishing, especially for steel parts after heat treatment. Compatible with most rotary tools used for chainsaw chain sharpening,suitable for sharpening chainsaw chains with 5.5mm diameter grinding stones. The size is approximately 5.5x25x3 mm, with a total length of 49 mm. Easy installation, can be replaced directly without adjustment, great compatibility and high reliability. Product include a total of 10pcs chainsaw grinding stone, which can completely meet your daily use needs and replacement., Manufacturer: LT Easiyl