AA-847 - 4-48 male to M2.5 female thread (conversion) Adapter
This allows you to use the (Metric) M2.5 contact points with your 4-48 (English) threaded EG-225 gauge.
The male end will screw into the indicator spindle. The metric contact point will screw into the female end of the converter. The converter will add about 3/8" of length to your point.
Directly compatible with the EG-series gages and any gage with 4-48 threads.
4-48 male to M2.5 female thread Converter
The purpose of the AA-847 and AA-848 adapters are so that you may use either (metric) M2.5 or (english) 4-48 threaded contact points.