Well sure Ed. It takes a good setup too. With gundrills getting the hole started is key. With thinner drills we had to use whip guides on the unsupported shank of the drill before it entered the hole. But the guides were fairly loose so the shank on thin drills would still whip around in a small circle. And the noise from the larger drills when drilling some materials was so loud we all had to wear earplugs under ear muffs. I'm still surprised the carbide tips didn't fracture from the chatter that was making all the noise. We used hardened bushings honed to the drill tip's exact size to insure a good on size start to the hole. Eric