for boring polygonal or other non-circular holes

Introduced: September 1968

Last revised: January 2006

Full Title

Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor > for boring polygonal or other non-circular holes

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Subclass:: TURNING; BORING