Modestly Priced Premium BLACK & DECKER 24 Cordless Lawn Mower at, black decker m However, different working environments will have different battery life performance. 8pc Bucket Pin Shim 65mm 5mm Thickness for Excavator And Skid Steer Detachable L lift-sale-9 (157) 98.2% positive Seller's other items Contact seller One Blade Electric Weed Wacker Cordless , Weed Eater Grass Cutter Lightweight Wi Lawn Mower [Dependable Performance] The motor speed is 11,000 RPM, 40% higher than the average. Aazon.co : Electric Weed Wacker Cordless, 21V 2 x 4.0Ah Weed Eater... Please be careful not to use nylon blades to touch metal and stones. 2. Steel knife: A sharp metal blade, used to cut stem grass. 3. Saw blade: Used to cut branches. Equipped with tank wheels, it can be pushed on the lawn, making mowing easier without having to bend down for a long time. [Adjustable Handle and Length] Length adjustment ranges from 43-52 inches, and handle angle adjustment is close to 180 degrees What are the three types of blades used for? 1. Nylon blade: For cutting tender lawns. The tank wheel supports 4 levels of height adjustment. Professionally certified battery supports actual work for 75-100 mins [Edger&Trimmer] One of the few Weed Wackers that has both blades and an edge trimmer wheel