1/16 Inch Cobalt Drill Bit Set - 5pcs M35 Metal Bits With Split Point Tip for Steel, Hard Metal, Cast Iron (1/16" x 1-3/4")

These drills work great, very free cutting and run true

Nice set at a good price. Has every drill you will need in an organized case.

It was exactly as advertised and worked very well on steel.

I built a no weld go-kart out of steel. As you can imagine I had to build brackets for everything so that everything could be bolted together.For the bolt holes, the thickest steel I drilled through was cold rolled quarter inch steel. These bad boys pierce right through on medium drill settings. You definitely need a sturdy, variable speed, reliable drill and of course a good punch to start your holes.Unfortunately, I cannot say how accurate the starter tip is, as even with using a punch to plot and start the holes, the bit/hole "walked" a bit at the end of the day. Note that I was drilling this freehand without a drill press though.. I'm sure a drill press would have made things a lot better.Out of 5 bits in the pack, I drilled hundreds of holes and still have one bit left over.I would definitely recommend these.

These were very sharp and cut through mild 5/16 steel with ease. The downside is they are very Brittle. They work perfectly in my drill press for normal drilling. I use these for horseshoes that sometimes need to have a rectangular hole enlarged. While drilling round holes in a rectangular opening is not ideal, nor their intended purpose, its often what I need them for. Other brands took my abuse with less breakage. Even with a good lubricant i snapped bits. Needs a light touch but ok for the money.