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| How do I tell if my drill rod is oil or water hardening? |
| (1/2) > >> |
| Mike K:
I got some drill rod a while ago. Some oil hardening, some water hardening. I didn't mark it. How can I tell which is which? |
| tom osselton:
I wouldn't think it would make much difference |
| Lew_Merrick_PE:
Mike, One end of the rod or bar should be painted. I believe that oil hardening rod/bar has a blue end (though I have not played in that sandbox long enough to be absolutely sure off the top of what's left of my mind). A quick call to your local supplier should give you an absolutely correct answer. |
| Meldonmech:
Hi Drill rod is normally supplied marked red for water hardening and yellow for oil. Should you have material with missing colour code you can use a spark test. The sparks from grinding are similar but not the same. If you have any material of known spec. you can spark test this and id the unknown rod. Cheers David |
| Mike K:
I've got yellow, red, and green. I've only ever bought oil or water hardening, though. I have some where I must have mistakenly cut off the painted end, but I've found receipts for those. I'm going with: yellow = oil red = water green = pick one and forget about it :) Thanks guys. |
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