Originally Posted by wesmamyke

That Park locknut wrench is absolute garbage, it doesn't even come close to fitting tightly on the nut. Several way better alternatives have been made by J.A.Stein, Trek/Wrench force and probably others.

The smaller of the two Wrench force locknut wrenches made: Wrench Force 30mm 32mm Professional Headset Wrench by Snap-On New! Heavy Duty!! | eBay

The 12" Knippex smooth jaw plier wrench is also a popular choice, designed to not damage soft/nice/chrome plumbing fittings. A little pricey though.