The Goodson Tools & Supplies Diesel Spring Bench, No. DSB-7000, is a heavy duty unit meant to make working on large diesel cylinder heads manageable. Features include an adjustable fence to provide parallel movement of the head and rollers that provide easy movement of the head from side to side, as well as easy-to-operate, push-button controls move the cylinder to compress and release valve springs. The unit's stainless steel pneumatic air cylinder with variable ram speed control drives 325 lbs of force at 130 psi.