- A universal holder is an attachment used to mount a dial test indicator in
a machine tool spindle so that it can be used to align the spindle axis with
a workpiece feature such as a hole center, or a machine axis with an edge.
(See diagram below.) It also gives some protection against accidental impacts on
the indicator.
Mitutoyo - 21CZA231 - Universal Holder - Dovetail Clamp
Features:
