Professional Soldering JIG. Aluminum jigs wick the heat away from the connector making it difficult to get a proper joint, carbon fiber jigs are electrically conductive introducing the possibility of shorting out your battery.
Built from advanced thermoplastic it holds the heat in the connector without the risk of melting.
Spring loaded retaining bar will hold bullet connectors from 0.8MM all the way up to the massive 10MM. In the product pictures I have 2MM – 8MM represented – you can see how each one has a nice snug fit.
The attached arm is almost infinitely adjustable and will securely hold the wire so you can concentrate on getting the iron tip & solder right where it needs to be.
There’s also the option to add a 2nd arm to make the soldering stand even more versatile.