Clutches Drive Sprockets 3/8in -7 Clutch Assembly Set For STIHL MS660 066 064 MS640 MS661 Chainsaws Feature:1. This clutch kit is suitable for STIHL MS660 066 064 MS640 MS661 chainsaw, easy to install and replace.2. These accessories are made of S2 alloy steel, which is hard and corrosion-resistant, and is not easy to deform.3. High temperature quenching to strengthen the overall hardness, can be used for a long time without frequent .4. The kit includes clutch drum, gear, gasket, cover, bearing and E-clamp, etc., which can be installed and removed at any time.5. These parts can replace old or damaged parts of the chainsaw, effectively extending the life of the machine. Specification:Item Type: Clutch Assembly KitMaterial: Alloy Steel S2 Packing List:1 x Clutch Assembly1 x Clutch Drum1 x Drive Sprockets1 x Clutch Washer1 x Clutch Cover1 x E Clip1 x Sprocket