Sinclair makes a case-chucking tool to hold the brass while you spin it in a battery powered drill. Very little effort involved. Just hold the neck turning cutter tool in your offhand while you spin the brass with the drill motor. Use plenty of lube - STP works great - just a drop for each case neck. Its so quick you may have to take a break every so often so it doesn't get too hot! If you regulate your speed and how fast you feed the case onto the cutter, there is virtually no mark/ring, etc. on the case neck.