Chicago Latrobe 57725 150 Series High-Speed Steel Jobber Length Drill Bit Set with Metal Case, Black Oxide Finish, 118 Degree Conventional Point, Metric, 25-piece, 1.0mm - 13.0mm in 0.5mm increments

Beautiful black oxide coated drill bits made in the USA. A sturdy, metal storage case (index) is included. Worth paying a extra for over poor quality imports.

The Chicago Latrobe drill index set is much better than the cheaper sets. I did a sample measurement on a random selection from the set, and they all measured right on spec. So far I've only used the smallest bits, 1mm and 1.5mm but they cut well and held their edge. These are definitely worth the extra cost. You pay for what you get.

High quality and a nice case.

Nice sharp drill bits.

I don’t drill a lot of metric holes, but when I do, these are perfect for the job.

They are very soft and don't hold an edge. The 10mm bit could not even make it through a 2.5mm (less than 1/8") plate of mild steel using lubricant. This is not real HSS.

We are a custom fabricating machine shop...Chicago Latrobe is the only brand we buy. Very consistent quality and easy to re-sharpen.

I haven't used all of the bits yet, but the ones I have used drill a nice clean hole in 303 stainless. I haven't found one that didn't produce even shavings from both flutes when using the lathe or drill press.