After spending the weekend trimming, chamfering and reaming case necks on a bunch of brass that i was given . My hands were killing me using that small 1 piece tool , I wondered into Cabelas and happened across the Hornady case prep duo, well the hurting hands got the best of me and I bought one. this is the best thing sense girls went back to short shorts. hands don't hurt any more and I am done getting my brass ready to use. If you haven't tried one I would suggest giving it a try I love mine now.