Patented PowerGear technology multiplies leverage to 3x more power on every cut. Modified gears and cam mechanism optimizes cutting power in the middle of the cut where the branch is thickest. Fully hardened steel blade stays sharp and low friction coating helps the blade glide through wood, prevents the blade from gumming up, and helps resist rust. Rugged DuraFrame construction provides superior strength and reduced weight. Contoured, rolling handle fits the shape and natural motion of your hand for comfort and reduced fatigue. Easy open lock protects the blade during transport and storage. Lifetime warranty.