The ram is designed to accommodate wire sizes from 8 AWG up to 4/0 AWG, making the TemCo hammer lug crimper suitable for attaching heavy-duty terminals to welding equipment cables, but not small ...

They’re the connector on those rainbow colored jumper wire sets, and connect perfectly to 0.1″ pin headers. The connectors and terminals are cheap, but the official HT-0095 crimp tool costs ...