Surface footage calculatorinches

I'm looking on ebay at the Drill Hog ones but I don't know what the difference is between the M42 colbalt, Niobium or their "Pig Steel" drill bits. I've even seen platinum ones by a different manufacturer.

These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Haskins Industrial.

Surface footage calculatorsquare feet

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