For maximum performance we recommend 90 PSI air pressure. Dual orbital action provides a swirl free finish. Paddle throttle and vinyl lined top housing for operator comfort and control. Heavy duty manalium cylinder, steel front end plate and heat treated throughout for extended service life. Muffled, rear exhaust outlet directs exhaust air away from the work piece. 6 x 120 gram ±5, PSA type pad which is balance weighted to reduce vibration. Adjustable speed regulator. Compact and light weight dual action sander designed for single hand operation. Popular non-vacuum model. Standard accessories: 6 inch PSA sanding pad (905310) and wrench.