NordWolf 5-Piece M35 Cobalt Stubby Drill Bit Set for Stainless Steel & Hard Metals, with 1/4" Hex Shank for Quick Chucks & Impact Drivers, SAE Sizes 3/32"-1/8"-3/16"-1/4"-5/16" in Storage Case

I’ve used many hard metal drills. They generally work fine at first but dull quickly. These stayed sharp longer than others.

Great little kit. I’d definitely buy again and a bigger set! They are super sharp and drilled right through the stainless!

They stayed sharp, even though I was drilling some hard metal

They are short and they cut. I broke 2 drilling in steel with lube, but they got the job done

Exactly what I’ve been looking for

Needed to tap a hole in a piece of toothed track, ie steel, for a stairlift. Used cutting oil and cleared the burrs after every few millimeters of progress, to ensure a smooth cut and to protect the bits. Started with the smallest bits, working my way up in size. The first two passes with the first two smallest bits went fine, but when I got to the third bit, the bit caught and immediately shattered. Not what I was hoping for or expecting from bits that say they are specifically for stainless steel and hard metals.

Son geniales, cuando llegaron a casa y vi su pequeño tamaño, pensé que era alguna otra basura de China, pero cuando las usé, me parecieron increíbles, de hecho mejores que la marca Dewalt, había comprado otras Dewalt y todas se quemaron y no pude terminar el trabajo, esta si hicieron el trabajo completo, fue un trabajo duro, estaba perforando el chasis de un camión comercial, y estas pequeñas cositas hicieron el trabajo perfectamente, con algo de paciencia y dejándolas de enfriar un poco, pero no se quebraron y nunca dejaron de morder…Increíbles… las recomiendo.!!

Just ok a couple broke but where good in tight spot.