Let's begin with a couple of red terminals attached to a piece of 22AWG wire using the two tools described above. The terminal on the left was installed with the Precise tool.
Note that the Precisetool produces a more sculptured appearance to the crimp. The Precisetool dies are shaped in a uniform, squashed cylinder. Precisetool dies are more artistically shaped by folks who have made a lifetime career in wire termination technology. No doubt there are benefits to be realized from the extra effort but let us compare the final results . . .
The Precisetool has a spring loaded stop that helps you properly position the terminal in the tool. The stop positions the terminal flag flat with the plane of the crimp. The terminal wire grip barrel sets against the stop to control centering in the tool. It also provides a stop for wire insertion to make sure the bared strands are positioned just flush with the end of the terminal at crimp time.
For the Precisetool, just center the plastic barrel in the jaws and orient the terminal flag parallel to the plane of the crimp. Closing the tool down to the first "click" will capture the terminal in proper position. You have to watch the free end of the terminal during wire insertion so that exposed strands are just flush with the end of the wire grip.
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