Item no.:at-s04 6" palm air sander (vacuum) Built-in regulator for speed control. Lightweight and ergonomic design. Low vibration during operation. Ideal for producing fine finishes. Rear exhaust. Technical data Free speed:10, 000rpm Sanding pad:6"/150mm Air inlet(pt):1/4" Air hose(id):3/8" Avg.Air consumption:4cfm Working pressure:90psi. Q'ty:10pcs N.W.:15kgs G.W.:16kgs Mean:58x33x22cm.