What’s the difference between the two mobile bases for the Professional Saw (MB-PCS-000 and MB-PCS-IND)? The Industrial Mobile Base (MB-PCS-IND) has 4 casters that spin, making it simple to move in any direction. It is also rated up to 1000 lb. and therefore compatible with our larger accessories such as the Inline Router Table and Floating Dust Guard. The Integrated Mobile Base (MB-PCS-000) has only 2 casters that spin, and 2 fixed wheels, similar to a shopping cart. It’s a great solution for moving the Professional Cabinet Saw in any of its more standard configuration setups.