My dad had a couple of the aformentioned big 1/2 inch craftsman drills. It primed quite a few motors years back before finally passing.

I smoked my Dewalt 1/2 after priming 2 440s. Still works fine, but the batteries are toast.

Smoked my 1/2 Skil the other day on a sbc motor. The Skil doesnt have much umphh...


72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.