I recently came across a 1977 Schwinn Paramount track bike for sale. It was in beautiful condition for its age. My dad rode a 1948 Paramount track bike as an around-towner when I was growing up-same color, metallic blue-so there was a nostalgia element too. I bought the Paramount, and knew right away I'd be messing with the rear cog, so buying the Park Tool 18 Chain Whip was a no-brainer. The original fixed cog was on super tight-probably hadn't been removed since the factory. But with the Park chain whip I had it off in a couple minutes for cleaning (and now occasional replacement with a single cog freewheel). Park Tool chain whips for either/both 316 and 18 are essential if you work on your own bikes.
This tool is strong and well made. It is difficult to find one that fits TRACK cogs. The usual tool does not make a big deal out of the fact that it will NOT work on track cogs. I imagine this tool will stand up to years of use (andor abuse) and handle the job well.