1/4 Inch Collet, 28000 RPM, Straight Handle, Front Exhaust Air Die Grinder Price For: Each Collet Size (Inch): 1/4 Handle Type: Straight Speed Range (RPM): 25,000 - 49,999 RPMs Exhaust Location: Front Air Consumption (CFM): 24.00 Speed (RPM): 28000 Horsepower: 0.25 Inlet Size (Inch): 1/4