Magswitch Resaw Guide This ball-bearing based resaw fence allows wood to flow more smoothly than anything you have ever tried Angled to allow for blade drift, it also makes a perfect outfeed work support , Designed for use with T21140 MagFence universal mounting base (not included) For use with the Magswitch Universal Base and MagJigs Includes micro adjustment for fine tuning to 90 degrees. Versatile attachment tool for re-sawing on band saws, oscillating spindle sander, or disc sander; and for in-feed/out-feed support. Built from strong and durable ABS UL94VO material for years of use. Low profile design for use on your smallest tables