Restore reliable line-feeding control to your brushcutter head with this high-quality replacement bump knob. Engineered for a precise fit with the JM817 manual head, it features a durable left-hand thread structure.
| Model # | JM817-6 |
| Brand | JAK Max |
| Type | Brushcutter Spare |
| Thread | Left Hand |
| Suits | JM817 Trimmer Head |
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