Campbell Hausfeld 5" Angle Grinder, Air (CL155500AV) Aluminum alloy housing is rugged yet lightweight, making this air angle grinder easier to use for long periods of time. The side handle allows for better control, providing flexibility and ease of use to the operator Powerful air motor spins at 11,000 RPM for fast removal of material, rust removal, weld preparation and de-burring. Finish your projects faster and easier with Campbell Hausfeld - The Air Power Expert Spindle Thread: 3/8 in.-24, Rated Power: .6 HP, Free Speed (RPM): 11000, Air Consumption Avg.: 11 SCFM