Forester Brush Cutter Blades And File Set - Trimmer Chainsaw Tooth Saw Blade - THE BEST QUALITY: These ultra sharp chainsaw teeth can power through anything you need up to small trees and has a heavy-duty carbide construction that keeps going where others quit. These blades are a perfect fit for most straight shaft trimmers. GET MORE FROM YOUR BLADES: Our circular brush blades use advanced heavy-duty construction to give you the longest life possible. Each is treated for anti-corrosion to keep your blade safe even when you're not working in ideal conditions. FORESTER GETS IT DONE: It doesn't matter what you need to do. From trimming trees to cutting large bushes, weeds, thorns, and more nothing gets the job done faster and easier. More convenient for getting into tight spaces than a lawnmower, and more powerful than a weed wacker! HIGHLY VERSATILE: This chainsaw blades 1" arbor and 20mm brushing fits most straight shaft trimmers with 30cc and larger engines. Designed for high-grade max speeds of 10,000 RPM. Straight shaft trimmers require an adapter kit sold separately. YOUR TRUSTED SOURCE: We're here to provide you with the highest quality equipment at the best prices possible. If you have questions or need help for any reason, please don't hesistate to ask and we'll be happy to help.