A4.0 4.0mm[5/32"] Carbide Sharpening Burr - Sharpens 1/4 and 3/8 Lo Pro Chain

Carbide burrs are used to sharpen chainsaw chain as a durable alternative to files. Made from tungsten carbide, they resist wear and maintain their cutting profile over time.

Used with a rotary tool, they remove material efficiently and help maintain a consistent sharpening angle when matched to the correct chain specification.