Carbide Brush Cutter Blade WORKS BETTER & LONGER IN DIRTY CONDITIONS •CUTS FASTER•LASTS LONGER •SHARPEN WITH EASE USING OUR FORESTER® DIAMOND FILES! Works better and longer in dirty conditions. Able to slice through tough brush & mow down small trees. Reduce cutting time with these blades. Easy to Sharpen. File in the field with a 3/16" Round Diamond Chainsaw File. Only for use with Straight Shaft Brush Cutters. Blades have 1" x 20mm Bushing. Cuts Brush & Trees up to 2-1/2" Diameter Thick.