AKARI 54000 rpm Pencil Type Micro Air Die Grinder, 1/8" (AT-MDG-03) REAR EXHAUST, 54,000 R.P.M MICRO GRINDER SLIM AND COMFORTABLE DESIGN FOR GREATER ACCESIBILITY, CONVINIENT HOSE WITH HOSE PROTECTOR NIPPLE AND WRENCHES INCLUDED IDEAL FOR FINAL CLEANING AND POLISHING OF DIES,JEWELLERY AND HOBBY USE GRINDER CAP: 1/8