Product details:
This Micro Air Grinder is for industrial use. The compact design accepts 1/8" shank grinding stones. Features 56,000 RPM free speed and includes a Micro Air Grinder with 56" flexible hose, 10 grinding stones, male quick connect coupling, collet wrenches, inline filter and lubricating oil. 90 PSI recommended air pressure 1/4" NPT inlet.