This is the best regular maintenance tool for you can do for your electric guitar. After pushing outer rings down to tighten, there is room to put your finger through and pull.
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Guitar Knob Puller Remover Replacement Pulling Tool For Electric Guitars - UK
VrotQyn 2 PCS Professional Guitar Multi-Tool - Spanner Wrench, Knob Puller & Nut Scribe, Portable All-in-One Repair Tool for Guitar, Bass & Electric Instruments
