Removed from a Squier Telecaster '19 There is no rust or peeling plating, but there are minor scratches due to storage. The part that fits into the shaft is a serrated type. The inner diameter is approximately 5.75mm, which appears to be a millimeter size. The outer diameter is approximately 19.5mm. * The description of the condition is subjective and there may be oversights. * Please consider this a transaction between individuals for a used item. * If you have any requests, please feel free to contact us in the comments section.