PIN FOR BRUSHCUTTER CLUTCH MODELS: ALPINA: 21 22 25 26 30 TS27 ECHO: SRM300 SMR303 2250 2450 2600 3000 MITSUBISHI: T50 T110 T140 TM21 TM24 STIHL: FS81 FS86 FS88 FS60 FS61 FS66 CHARACTERISTICS: WRENCH HEX: 13 mm HOLE HEIGHT: 8 mm CLUTCH HOLE DIAMETER: 8 mm THREAD DIAMETER: 6 mm COMPATIBLE ALPINE ECHO MISTUBISHI STIHL MN