Perfect Miter Attachment, Our "Perfect Miter" attachment is designed to support the mitered end of a board so that the sharp point of the miter is not damaged while cutting. The attachment also allows the mitered end to be measured off of two points of contact instead of the toe of the miter, creating increased accuracy. A must-have for picture framers or anyone who routinely cuts miters. A slot is machined into the attachment which enables it to be attached to the Production Stop or Flipstop with a simple carriage bolt. Kreg Tool