Glad the adjusting tool has worked out so well. Have not had much feedback regarding the valve adjuster. The snail wrench I carry is made from a 3/16" strip about 1/2" wide with a section of vinyl tubing over the handle . The welding was a bit simpler and the tool just a tad lighter. Just bought a new welder and being a retired guy I do have some extra time on my hands should someone want an original mrgizmow snail wrench. Suspect my marking on your parts bag is incorrect. The retention pin position was getting very close to the nesting area of the side plates of the chain I suspect the smaller diameter of a twelve tooth sprocket would conflict with the dimensions I used.