SnapOn claims theirs is a standard impact driver. I use mine with a 3.8 inch "butterfly" all the time. Haven't broken it in 15 years. Defend you lifters but quit sparring with Lon. The and his following won't listen anyway and the rest of us know better. Let me know when the FC clutch cables are ready for shipping. Jim Davis At 07:05 PM 1/20/2005, you wrote: >Anyone know of an "impact" quality available ? >David