CaRoller Drill Bit Set – 29-Piece High-Speed Steel Drill Bits – Durable Drill Sets with Storage Case for Steel, Wood, Plastic, Sheet Metal

Ok for wood and aluminum but for Stainless Steel they to nothing, not even starting to cut it. Another Magnum set I got from was twice as much but cut SS perfectly. You get what you pay for in this case.

Try the drills there very sharp and drill metal easy

I've used several of the bits, they are very sharp and didn't dull after one or two uses. I think this drill index will meet my needs both now and in the future. Every size imaginable.

quality is awesome

The cobalt black and gold bits cut really aggressively in fact I stopped pre drilling for larger holes BUT while they don’t slip in my drill press they do tend to slip in the chuck of my cordless hand drill and when they do they easily create burrs on the ends which has no impact on drill functionality but they they no longer fit in the holes of the case so it’s hard to keep them organized. Somewhat of an annoyance but again they work really well.