My solution to the dreaded case trimming is an RCBS trim pro with a 3-way cutter. I remove the handle from the trim pro and chuck the trimmer shaft in a 1/2 drill (my speer manual is the perfect thickness to take the weight of the drill off the shaft), no more hand cranking the trimmer, no more chamfer/deburring. After that I use a 3/8" drill on low speed with a primer pocket cleaning brush chucked in it for cleaning primer pockets. Cordless drills work great for these steps and luckily I have about 3 of them and lots of batteries. Would probably be cheaper to buy one of the case prep stations though if you don't have a bunch of drills laying around. I can't say enough good things about that 3-way cutter, it's a real time saver.