New ALM CH057 | Chainsaw Chain 40cm | 16 Inchs | 57 Drive Link Suitable for the following Chainsaws: 136, 140, 117 E, EF 17 E, 119E, EF 19 E The drive links are the teeth that run along the inside of your chain bar Please count your drive links carefully Picture is for Illustration only This is an 'ALM' Product and was manufactured as a replacement part for the models listed above**.
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