Take advantage of this offer prior to the price increase! Set of (4) 3” diameter by 1-1/4” wide red polyurethane wheels mounted on rugged 3/8” steel axles with sealed ball bearings for smooth, quiet rolling. These casters swivel 360 degrees for effortless maneuvering. These Premium casters require 50% less force to move a MARK compared to standard casters. Includes HD thick plastic drill template, 9/32” Bosch Cobalt premium drill bit, Shopsmith installation instructions with color photos.