JPW Powermatic 3520C Bed Extension 20inDetails Powermatic 1353002 Description This cast iron extension increases functionality of the Powermatic 3520C lathe. When mounted level with the lathe bed, it increases bed length by 20". It can be mounted in lower position for outboard turning, and the provided extension post raises the tool rest to the centerline. Powermatic 1353002 Features Extends bed length by 20" Can be mounted in low position for outboard turning Cast iron construction offers