The Magswitch Dual Roller Guide Attachment is for use with the Magswitch Workholding System. Mounts to the Universal Base and Mag Jigs (sold separately). Features a dual set of roller bearing supports for firm yet smooth gliding of wood through a blade. Includes micro adjustment for fine tuning to 90 degrees. Ideal for re-sawing on band saws, a second hand to support raised/long or tall panels on table saws, general in-feed out-feed support on tables or fences. Low profile design for use on your smallest tables. Features advantages of Magswitch including fast, strong set up anywhere on a steel table or cast Iron fence.