STIHL RAPID™ Super is an extremely fast-cutting chain. Its cutter and tie strap design reduces vibration levels significantly while still utilizing the aggressive full-chisel design. The razor-edged, square-cornered cutter shape ensures minimum chain friction for an exceptionally smooth and clean cut in hard or frozen wood. It offers excellent cutting and plunge-cutting efficiency. RS chain typically cuts faster than RM chain, but requires careful sharpening and maintenance to continue to perform well.
This is the non lo pro version [the .325 .050 lo pro version is found here 3690-23RS PRO NEW Stihl Rapid Super Chisel [Narrow Kerf] .325 .050[1.3mm]