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Steel plate thickness?


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  • 3 weeks later...

Anything 1/2 inch and up. I actually "had a pleasure" to install an ET Jr. on a 1 inch thick AR500 plate. When I asked the owner of the truck why the AR500, 1 inch thick, the answer was, "something we had laying around so we used it"

For those who are wondering "what the hell is he talking about", standard (common) A-36 steel plate has a BHN (Brinell Hardness Number) of 150-180, by comparison AR500 plate is heat treated/ hardened for wear resistance and has BHN of 460-544. I put a mag drill on it, lowered the cutter and the plate looked at it and said "OK Jr. make my day". We did mange to drill 9 holes in it, eventually, lots and lots oil on the cutter.

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