ZOMAX chainsaw clutch bell pinion Bell: 68.00 mm Shank: 13.00 mm HEIGHT: 23.00 mm Pitch: 3/8 Number of teeth: 6 for models: ZM4100 Code: 016996 ZOMAX MOTOR MOTOSEGA PROGREEN PG 4020 3/8 TEETH 6 SWING 68.00 THICKNESS 13.00 HEIGHT 23.00 SR