IMHO, all of those locks can be opened with little effort. Either with a prybar or a hammer and punch. BigBird007 is right, you won't be able to use the key after a few weeks anyhow. You are better off using a screw pin shackle, loc- tightening the threads and using a cut off wheel to remove the pin head so it's flush. Now for sure the only way it is coming off is to cut it.
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You can als use it to attach a safety strap to your rod or ?