I have something similar, although it's only a cog tool. It has two different size ends for larger and smaller cogs. It can also be used to disassemble old style multi-speed freewheels with screw-on cogs. My only complaint is that it grabs only one tooth of the cog and can damage it, which is why I prefer to use a chain whip if possible. As to the lockring tool, nothing beats the Hozan pliers that I bought from RG.