General description Fits Stihl MS171, MS181, MS211, MS171C, MS181C, and MS211C Chainsaws. This 3/8' - 6T Sprocket Clutch Drum Kit is designed as a replacement part to enhance the performance and longevity of your chainsaw. Technical specifications Pitch: 3/8' Teeth: 6 Compatibility and accessories 1 x Clutch Drum 1 x Needle Bearing 1 x Washer 1 x Power Clip (8 x 1.3) 1 x Worm Gear Installation Easy to install and use, this kit allows for direct replacement of old or damaged parts, helping to increase the service life of your chainsaw. Usage Designed for use with compatible Stihl chainsaw models, this kit ensures optimal performance and reliability.