Dynabrade 18020 .5 hp Autobrade Red 7&deg; Offset Die Grinder, 20000 rpm, Gearless, Front Exhaust, 1/4" Collet 7 degree offset handle offers added comfort and control Gearless design for reduced downtime and maintenance Includes 1/4" collet. Front exhaust .5 hp Autobrade Red 7 Offset Die Grinder, 20,000 rpm, Gearless, Front Exhaust, 1/4" Collet