Woodstock Planer Pals, PR are precision-engineered planer jigs designed to set knives quickly and accurately with the help of powerful neodymium magnets. Manufactured under strict quality control from top-quality materials, these jigs securely hold knives in position, ing both hands to tighten the gib. This innovative knife-setting system ensures alignment every time, allowing you to shift nicked knives on 2-1/2" to 4" cutterheads for an exceptionally precise cut with an accuracy of ±.001". I for 12" and smaller planers with 1-7/8" to 2-1/8" cutterheads, these planer pals are sold in pairs to provide reliable and efficient knife-setting assistance. Model Number: