Perfectly ergonomic front palm rest and small handle gripping cirference provide best tool control Multi-hole sanding pad conveniently fits all sanding sheets irrespective of the amount of holes Extremely powerful 750 W motor and active pad rotation deliver excellent removal rate Sanding pad diameter : 150 mm.Oscillating circuit diameter : 4.5 mm.No-load speed : 3,300 7,300 rpm.Orbital stroke rate : 6,600 14,600 opm Items Included: GET 75-150, Weight: 6.944561253 pounds, Manufacturer: Bosch Professional