Makita DCS6401-20 20"64cc chainsaw 2 cycle Dcs6401-20 chainsaw has a 64cc. 3.9 cu. In.engine. Engine power4.7 bHp. The No-load speed is 13500 rpm's.Has an integrated chain brake with external sprocket which simplifies chain installation and clean-up of the bar mounting area. Competetors state in disbelief at the power-to-weight ratio of this chainsaw. A professional feature is the minimum clearance of only 23mm between the outer edge of housing and the guide bar The automatic half-throttle lock is engaged via a pull lever which sets half-throttle and choke at the same time. Vibration damping is achieved with a combination of sturdy Steel springs embedded with rubber buffers. These take up little space and are fully resistant to oil and gas. The chain lubrication can be accurately adjusted through a 70 degree rotation of the adjustmentscrew. An innovative Makita development for quick and convenient tensioning of the saw chain. It ensures proper fitting of the sprocket cover.