The M18 FUEL™ 18" (457mm) Hedge Trimmer has the power to cut 19 mm branches, provides fast cutting and up to 2 hours of runtime when using an M18™ REDLITHIUM™ HIGH OUTPUT™ 8.0Ah battery (sold separately). Designed to meet landscape maintenance professional needs, the handle placement and weight distribution provide the best combination of balance and control. The trimmer features a slider-crank mechanism and all-metal gear case providing users with durability and longevity. With 3,400 strokes per minute, the 18" (457mm) provides users with a maneuverable blade set and ergonomic design which allows users to maintain maximum productivity. The blade tip guard prevents damage to the property and the blades.