These models incorporate both traditional aluminum and composite housings with textured and non-textured comfort grips. Configured with 5" (125mm) or 6" (150mm) sanding pads and with 3/16" (5mm) or 3/32" (2.5mm) Orbits. These sanders feature high efficiency air motors which deliver true 10,000 rpm and 12,000 rpm performance in a compact package, maximizing both efficiency and economy.