Review on 🔩 EnerTwist DBA 230B Titanium Drill Set - 230 Piece by Charles Lewellen

This is the best deal in Revain. The bits are about the same quality as Home Depot at $15 for a set of 20. So at this price, this is an incredible deal. They last about as long as other titanium drill bits and don't break easily (today I broke the two smallest sizes in a hand drill after 16 holes in hardened steel, which is average for titanium drill bits in my hand). Some of the 1/16's are miscut, with a slightly off-center tip making them unsuitable for some applications (see picture), but it's less than one of the ten smallest and I've only seen one of the 3/64's, it was one bit eccentric and none of the greats. Hardness wise I made eight holes with a 1/4 bit on the same hardened steel and I could see very little wear at the end under a microscope at the end (see another picture) causing similar damage on the same steel caused on the DeWalt bits I've used. As always, proper technique is critical to drill bit longevity, but if you know how to drill, they will last a very long time.