About this item Universal type saw blade: Compare the holes on the picture of the blade and your pruner pole and see if they can match up. Designed for the tree pruner models of the most brand. However, it may not match some tree pruner models. You can easily replace this saw blade for your tree pruner Hardness: The hardness of the steel is HV ≒ 950~1,000, which is exceedingly hard and abrasion resistant and therefore very powerful Sharpness: Unlike conventional methods, teeth are sharpened by whetstone to produce a super sharp cutting edge far superior to the cut of saws with teeth sharpened by conventional filing. The sharpness is equal to that of a high quality knife. The teeth are also impulse hardened which gives them longer life Hard chrome plated finish is rust proof, friction free and produces a smooth cut › See more product details