Features:

Designed for crimping Anderson Power Pole 15/30 and 45 Amp connectors.Built-in contact positioner to hold contacts during crimping.Ratchet mechanism provides high strength, low resistance crimps every timeMuch faster and better than soldering.Provides high strength, low resistance connections

Note:

The contact points sit in the gap between the housing and the spring, and the contact point must be snapped at the end of the spring.