INCRA LS25 LS Range Positioner Only 25-Inch Incrementally positioned carriage provides accuracy to .002" and perfect repeatability Available in 2 sizes: 17" and 25" Patented Lead Screw Technology makes this unit the leader in precision positioners for woodworking Removable, T-slotted sub base under the tubular base housing Perfect upgrade for Incra router and table saw systems using the earlier Ultra positioners