Ran across this today. First time I ever saw a screw drive splitter. It probably has a very long cycle time. I couldn't even find refernce to this make in a google search: http://sfbay.craigslist.org/nby/grd/3171119575.html Older Gilson screw-drive wood splitter. B & S motor, though can't tell what the horsepower is. Guessing 8+ HP based on the size. Ran well 7-8 years ago when I had a friend go through the motor and get it running. Hasn't been used since. Has been stored outside, though the motor has always been covered. Uses 1 7/8" ball and one tire has small leak. $150 firm.