Reno I've been using impact drivers for years - had I known you were still in the dark ages I would have let you in on this secret sooner.... eek

Now you wanna have some fun - chuck your unibit in the trash. Cut a 1/4" hole for the arbor then the hole size you want - much faster that a unibit!
[Linked Image from toolbarn.com]

Also Panasonic does make an impact and drill combo - the chuck comes off to expose the impact driver. Years ago it was THE BEST thing on the market - but had little distribution, and darned pricey... IMO it has been surpassed in price and quality by some of the Makita combo's.
[Linked Image from makita.com]


Mark Heller
"Well - I oughta....." -Jackie Gleason