Precision-ground, extremely sharp JT teeth for quick and clean cuts, flexible yet stable curved saw blade with hardened tooth tips, stable saw blade with a total length of 390 mm or 450 mm and 5.4 teeth per inch for sawing thicker branches and for coarser cuts, Hook on the tip of the saw blade prevents it from slipping off the branch, bark knife at the end of the saw blade, the ASP-AS adapter is required for connection to the Bahco telescopic rods