Wilson Case Trimmers owners can easily add the Sinclair Micrometer Attachment to their case trimmer. The micrometer has clear, crisp engravings, and can be locked in place after being set. Adjustable in increments of .001inch and can be adjusted to handle cases ranging from 22 Hornet to 416 Rigby. Great addition for those handloaders switching back and forth between different trim lengths.
Sinclair, Issue:4A, Page:011