◎ BORING HEAD Here is a sturdy
unit of extended boring range, capable of peeling off heavy roughing cuts as
well as a tool exteme sensitivity.
The use of a wide base bar holder, restimg securely on the
body, eliminates the need for a separate
side plate. You will note this has now become an integral
part of the body.
The direct reading adjusting screw is ground after
hardening and a plainly marked dial face in
nonreflecting satin chrome allows easy
reading and adjuntments of 0.0005 or less. All
Criterion Boring Heads have
threaded backs for use with a variety of shank. This model takes a 1-1/2" -
18 threaded shank