The St. Louis Pneumatic 1/4" Right Angle Mini Die Grinder, No. SLP-3150, offers a compact design to fit in confined areas where a straight tool cannot be used. Excellent when used with surface preparation or sanding discs. Rear exhaust performance is ideal for grinding, polishing and deburring. This tool features 20,000 RPM with .3 hp. and comes equipped with a safety throttle lever. Includes two wrenches. Made in USA.