RazorTOOTH SAW TECHNOLOGY removes significantly more material per pull stroke than conventional blades, finish cutting up to 2x faster 3 SIDED RAZOR TEETH efficiently cut limbs up to 8" in diameter HIGH-CARBON STEEL BLADE made of Japanese SK5 steel for long-lasting sharpness MAXIMUM DURABILITY AND HARDNESS: each blade goes through 4 manufacturing processes increasing hardness and reducing friction CHROME-PLATED BLADE reduces friction and improves tree trimming efficiency ERGONOMIC COMFORT HANDLE with pistol grip to mitigate hand slippage and reduce hand fatigue IMPULSE HARDENED TEETH extend the life of the tool