I use one called whale, have used it for 3 years now (3 chains)and no worries about it breaking, heavy duty bit of kit
I've seen those, it's the one where you have to use a 2lb hammer to rivet the master link pins? ...some have a threaded bolt or similar to manually tighten and rivet.
Been using a DID KM500 for about 25 years, bulletproof and sets the side plates correctly, and if used properly does not damage the pin when you rivet it