watch when using, can break or bend under little pressureThe drill bits are so soft that they bend. I've seen drill bits break but never have I ever seen the drill bit bend. My son tried the first one and was speechless to explain what happened. So my husband tried another one from the pack and it was bending on him too. They were not drilling through anything dense or thick. It wasn't user error or the material being drilled. They changed drill bits to a different brand and absolutely no issues drilling with the other brand. It was the drill bits. Please see the pictures. The only thing they are useful for would be as a prank.I've been the owner of a residential cabinet shop for over ten years. We purchased these to drill the door/drawer hardware for onsite install. My crews told me that they basically had to force these bits to work and would have severe blowout during every use. The price was attractive, but the product is worthless in my opinion. Spend the extra money and buy a product that will work.Se ronpen con facilidad no son de buena calidadFactory label side shows these to be 3/16" bits. Flip it over and a label with a sku # shows these to be 1/4". Stock needs to be checked before shipping out more in error.Nice quality for the money.High quality wood bits. I will buy from this seller again without hesitation.