I am not a bit expert by any means, but we do handle and sell bits in the shop, and this is one of the nicest and most interesting we've had for a while. From what I'm told, this is a 5 inch spade show bit, with real German silver over stainless steel, and it has a copper roller with a copper shield over the roller. The slobber bar is also silver. The actual inside measurement is just a little over 56 inches, about 5 1/8. You can see the quality in the picutres. The bit has been used, but shows no real wear or damage. This one came in on a trade with some other tack, I've priced it at a very reasonable $75.
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