Easily move your heavy stationary power tools around your shop with the help of the Jet JMB-UMB Universal Mobile Base. Its adjustable design lets you set it up anywhere between 18'' and 24'' in length and width, and spring pins allow fast adjustments. Two of the casters swivel for easy steering, while two are fixed for straight tracking. The base has a weight capacity of up to 600 pounds, allowing it to safely support large tools. Easy assembly; no tools required.