Quality nails, I used them on 3/4 of the hickory floor with an automatic nailer ($120). The only mistakes I had was when I hit the nailer lightly. Otherwise these nails worked great. A note: if you don't hit the nailer hard enough, the nail won't go deep enough. When this happened, I used a manual grinding wheel to cut off the nail at the level of the tongue. I think it would be impossible to pull out the nails. The nails arrived on time, the packaging is intact. I liked them so much that when I decided to do additional floors in other rooms I bought them again.