Feature●Sharpened upper hook prevents pulling out of cut and quickly removes suckers or vines●Sharpened lower hook scores bark to prevent ripping damage to branch collar●Tri-cut edge provides a quicker, cleaner cut with less wear on the blade than traditional blades●Hard-chrome plated with impulse hardened teeth for long lifeDescription Jameson Pole Saw Head (PS-3FP) with 16" Double Hook Tri-Cut Blade snaps into poles ferrule. Rust resistant, lightweight aluminum pole saw head. Leather scabbard protects blade and user when not in use. Preferred by professional arborists.