PV: What is this Part in a Crimping Kit ?

[SageBrush]

The highlighted, magnified circle shows two metal pieces with jagged edges.

What is it used for ?

 

[ThisIsTrue]

It's another dye that goes in the crimper for a different kind of connector.

 

[richrootes]

The highlighted, magnified circle shows two metal pieces with jagged edges.

What is it used for ?

View attachment 230808

They're used to crimp Coax normally, either BNC or CATV (RG6 for instance)

 

[swaltner]

I was going to post a couple pictures from my RV-8A (homebuilt airplane) project, but found How to crimp BNC connectors « Matt's RV-7 Project with a nice write-up on how to use these dies to properly crimp coax cable. Start with a tool to properly strip the coax (three different depths of cuts are required), use the die you referenced to crimp the pin on the center conductor, slide the ferrule and BNC/TNC/SMA/... connector onto the wire and crimp the ferrule using the hex shaped crimping die. Only takes a couple minutes to prepare and crimp one of these connectors with the right tools.