Always on sale but never bought any until recently, these work really good for sheet metal. Harbor Freight coupons also work on these so you can get them at a much cheaper price. The drill bits or step bits work better than the old method of manual stepping or having extra drills with bits loaded for faster work. If these work great for the money, I can't imagine how amazing the higher quality stuff might work.
I didn't use cutting oil except for on the lathe, I am sure had I used cutting oil for the first hole, it would've made for a faster job.
Item #91616
Cool-running titanium nitride coating last longer than uncoated bits
High speed steel for longer life
Automatically deburrs holes while drilling
Two-flute design for faster, smoother cutting
Quick-change 1/4 in. hex shank
