Park Tool CNW-2 Chainring Nut Wrench Double Ended To Fit Most Slotted Type Nuts

Works well! But it feels flimsy the metal is very lightweight.;

No more taking chances with the wrong tool;

It works!;

Fast shipping and gets the job done.;

If you tinker with your bike any Park Tools (or their knockoffs) are probably in your tool collection. The quality is generally there with solid construction that will last. Some in my collection are over 40 years old now and still going. This is one of those niche tools that does its job well although you will probably only use it every few years. I purchased this to replace a lost version since I had need of replacing worn out chainrings.

In use it just works as advertised holding the nuts on the crank while loosening or tightening up the bolts from the other side. I always toss in some blue threadlock compound (the push up stick kind is so much easier than the liquid as an aside) to make sure the bolts do not loosen over time. A wide flat blade screwdriver might do it in a pinch save for those hidden ring bolts but in my experience this tool is worth the ease of use. More importantly it makes for less stress.;