Support BladeForums! Paid memberships don't see ads! Just picked up a Vaughan U.S.A hatchet head at a local fleamarket. I knew it was not old, and is carried by Home Depot, but it had a bit of patina and i want to paint the hatchet as I probably won't be using it anytime soon. I soaked it for a day in vinegar and it cleaned up perfectly. Which revealed the problem. It had a very shallow heat treat line on the hammer head, but no line what so ever on the blade. Does this new production, U.S.A made hatchet really have no heat treated, hardened blade?