The Foredom® #30 General Purpose Handpiece has prefabricated ball bearings that do NOT require any additional lubrication. Comes with a c for changing accessories. are available separately. 5 3/16" long. 1" diameter. Various bench top tools attach to this versatile handpiece, such as the , Angle Grinder Attachment, Right Angle Collet Adapter, Belt Sander Attachment, Filer, , and