The tuff1 is my favorite ratchet. I have them in 1/2, 3/8 std and long and marked JS, and 1/4. All told I have 8 or 9 ratchets with about 7 rebuild kits in a drawer (I made good friends with a former SK dealer). On the old site I had a picture with 3 different tuff1's stamped SK but all had different SK stamps, I will have to find that picture.