In going thru my 2 boxes of sockets from a yard sale, I found this one. At first I thought it was a broken wheel lug lock nut, but not so. It reads 1/2" O-Ratchet #13316-USA. After googling it, I found this is a thru ratchet system similar to the old mossberg's, to allow the bolt to travel thru it. Anyone have any info. on these as far as who makes them, any good, etc?
Thanks,
Wayne