B
BuyBrandTools
Well, they are touted as "nail proof".
I quote:
"http://www.buybrandtools.com/acatalog/armeg-nail-proof-wood-beaver-16mm.html"
to me, nail proof infers....they are nail proof
Yes, the black WoodBeaver drill bits are definitely sold as being Nail Proof. I would be happy to put you in touch with a very knowledgeable Armeg rep if you are having problems with them?