Used a lot of expensive drill bits just like this on the construction site these work just as good as any I've ever used if not better can't beat the price for the money one normally cost 40 to $60 will be buying more

Good price works great

Keep up the great work!

Has worked great.

I had an aluminum Hammond box I needed to drill for a guitar pedal and these worked well in my drill press.

Cobalt works great had no problem in drilling any hole

The drill bits work great for the one I used now just hoop they'll last but side far good

Not very sharp, didn't even work well on copper pipe for reaming.

These worked well for drilling through my truck

As described good quality works well.

I drilled a couple of small pilot holes with a small drill bit, then brought in one of these ones, (perhaps the 2nd smallest, maybe the middle of the road bit), and boy-howdy, it made super quick work of the pesky, beat up deadbolt.

Nice work good

and they are great work staying

great stuff works