The task was to drill 3 holes in the handlebars of a motorcycle to be used for internal wiring. The bars are made from 14 gauge steel tubing. I wanted the center hole to be an oval about 5/8" x 1-1/8" so I started with a center punch and then a 3/16 as the pilot hole. Loading a short Neiko 1/2" drill bit into the drill press and using cutting oil made the oval nice and clean in minutes. The two smaller holes on either end of the rods were rounder and smaller. Part of my success comes from from cutting oil use whatever you have on hand WD-40 3-in-1 cold beer(!) whatever big difference there is some wear on the bit I used but nothing Unexpected. The same drill bit could have drilled many more holes in similar steel. Not right. I've always had good luck with Neiko. They may not be professional, but their products always suit me.