Size: Thickness: 2.25Mm, blade Diameter: 12, Hole Diameter: 1, Bushing: 20Mm, teeth: 3 Used for Cutting And Clearing Heavy Weeds And Underbrushmade Of Swedish Steel To Exceed International Standards for Durability And Safety.Ground Edge Can Be Easily Re-Sharpened With Standard Saw Chain Files.Grass And Brush Blades Include A 20Mm Reducer Bushing for Easy Mounting On .75 Arbors.3 Tooth Blades Are Reversible.All Oregon Grass-And-Brush Blades And Clearing-Saw Blades Are Rated To 13, 000 Rpm And They Are So Stamped.
Howeveroregon Recommends That These Blades Should Not Be Installed On Any Brushcutter Capable Of Spinning The Blade Faster Than 10, 000 Rpm.