Agile-shop 1/8'' Air Micro Grinder Air Micro Pencil 56000 RPM 90psi t's slim, lightweight, durable and comfortable to hold and use. Has a extremely flexible 50" hose with an abrasion guard that allows you to reach the most difficul Includes 10 different styles of grinding stone bits but the 1/8" collet allows this micro grinder t It's ideal for cleaning and polishing of jewelry, porting cyline heads, dies or any hobby and craf Pencil type micro air die grinder features free speed and has a self closing lever