go Simple solution for low volume jobs offering six popular, clearly marked folds for quick set-up and operation. This document folder is an easy-to-use solution for virtually all folding applications. Fast and dependable, it offers six popular, clearly marked folds for quick set-up and operation. Simply slide the fold stop to the desired fold location and go. The PF-60 easily adjusts to process single, letter, z-fold, gate, fold-out, double-parallel and many more varieties of precision folds.