Master Palm 1/4" and 1/8" industrial long neck 5" extensive shaft straight die grinder, 30000 rpm extends die grinder to hard to reach area. Free Speed:30000 rpm. Optional Muffler MSA-005.Featured Benefits Safety Level Easy Control :Safety lever with positive grip provides easy control. Built-in Air Regulator Lever throttle provides speed control and adjustment. Long Tool Life Span: Ball bearing contraction is designed for long life span. Hard to Reach Area Helper ...