Forester 8" 40 Tooth Brush Cutter Blades for Trimmers and Brush Cutters When everyday lawn tools aren't cutting it and you need the heavy duty ability of a powercutter, choose one of our blades. Made for universal trimmer heads our 8", 40T blade will fit nearly any brand. Try our blades with Husqvarna, Ryobi, Stihl, Toro, Dewalt, John Deere and other machines. Refer to owner's manual of your trimmer or brush cutter to ensure proper fit. Our blades are well balanced and won't wobble during use. Made with a 1" arbor with a 20mm bushing to allow fitting on most commonly used trimmers and brush cutters. This blade has a max RPM of 10,000 Rpm and should be used as directed. Main body of blade is constructed from quality grade steel with durable, carbide teeth for the ultimate in strength and heat/rust resistance. Carbide tips allow for more use and time without sharpening or replacement unlike steel tip blades which tend to wear down quickly. The Forester brush cutting blade is made for straight trimmers and brush cutters only. Forester trimmer blades are capable of cutting brushwood, dense grass, small saplings, briers, vines, thick brushes, shrubs and brambles. A different blade is required for trim and removal of heavier underbrush or growth. Carbide tipping will reduce how often blades need to be sharpened. However, when blades do need sharpened, it can be done quick and easy so you can get right back to work. As with all power tools, exercise caution and follow instructions carefully. Read all warnings on packaging before use. Wear proper safety gear for your protection.