Want to change out a pruner head for a great tri-edged saw head on your Barnel pole unit? This 17" blade is an excellent choice for pruning most types of trees. Barnel pole saw blades are tri-edged, laser impulse hardened SK4 Japanese Samurai sword steel with hard chrome finish. Barnel blades offer a laser impulse hardened SK4 hollow ground blade. Includes aggressive 5.5mm raker tooth pitch and 1.4mm blade material thickness for high speed sawing. Note: Does not come with connector pin to attach to pole. Connector pin should be on existing pole. Replacement Pole: Z555P2 Replacement Blade: Z555