Drill bits keep breaking?

A good cobalt bit should be the answer. As you start into the head the bit will want to catch on the lips of the screwhead (this is a phillips head? A bigger bit to get started then a smaller bit for the hole, may help.

Purchase a left hand drill bit and run your drill to turn counterclockwise. Once the drill will bite in the screw it should back itself out without the need for an extractor.

Yea these " titanium and "cobalt" drills are a rip off. Good high speed steel will cut through stainless and hardened steel with no problem. I don't think speed is the problem but the rule is the harder the metal the slower you drill.

I assume that it is a small drill bit. You have to turn it slow and keep it lubed. You have to let the bit do the work and not apply too much pressure. It can be tough and is easier if you can use a drill press.

You should start with a small bit, and then work up to the size you need. If the screw is stainless steel, it's going to take a while.

go slow, use lubricant, and hold the drill steady... most drills (especially cobalt drills) break easily if bent even slightly sideways....and don't push.. this just wears out the tip, let the drill do the work....

You need bits with a lower angle. Steeper angled bits grab too fast for metals. I customize all of my bits with lower angles so I don't get the bit issues. You can also take flatten the cutting edges so they scrape more than they cut. A scraper bit setup is priceless at times.

your drill either hat to much toque or not enough . is it a screw or a bolt . a screw is to small for an extractor . what are you doing .

go to sears an buy the stripped screw adapter it will fit your cordless drill they also have them for nuts an bolts

if you have a dremel tool, cut a slot in the top of the screw and back it out with a slotted screwdriver...