Re: my chain breaking tool looks different than what i find online for HOW TO
The instructions are on the back of the cardboard that the tool came on. But I assume you didn't get that or you wouldn't be asking. The bar that goes into the jaw will open the jaws when pushed down. Put the chain in the open jaws being sure that the link pin is lined up with the part that pushes out the pin. Close the jaws by releasing that bar you pushed down. Then all you have to do is turn the other bar to push out the pin.
I have the exact tool and it is actually made for motorcycle chains. A much bigger chain. But for us it is VERY heavy duty and it works great!