The CAT535R Cornwell bluePOWER Mini Right Angle Die Grinder is a high-quality pneumatic air tool designed for automotive and industrial applications. This right-angle grinder, featuring a 1/4-inch collet size and a maximum speed of 18000 RPM, offers precision and efficiency for a variety of grinding tasks. Manufactured in Taiwan by Cornwell, this single item unit is a reliable and durable tool that will meet the needs of professionals in various fields. I wiped it down and oiled it and made sure it worked, works like a dream.