The best drill bits known to man
I'm a dewalt man, always have been always will be. But these drill bits by milwaukee are insanely good. I've used the 5.5mm drill bit for drilling steel to fit dewalt racking in my van with an impact driver which give them a good hammering, drilling slate and stone. It's still going after months of use. I've only bought this pack as I lost the other. A must have!