Originally Posted by
sweeks
FWIW, I measured all 5 of my Park Tools cone wrenches; they are all 2.3 mm thick at the business end.
These are the black ones, and they seem quite hard. I have used the 15 mm wrench as a pedal wrench (MKS AR-2 Ezy quick-release) with no distortion of the edges.
the flaring usually happens because of badly made cones on low end bikes... and then, there are the occasional 14mm (more likely 9/16") cones on BMX bikes. or antique hubs.
i once snapped one jaw right off a 13mm Park chrome cone wrench..
took it to a Performance bike shop (now long Closed), and they said they wouldn't give me a new one, but to email Park...
I Called Park warranty... they refused to believe i'd broken it without a helper bar, so i sent them a pic of the snapped wrench, the jaw half that broke off, and included my Forearm in the pic...... the new wrench showed up two days later..
i was trying to open up a Walmart Mongoose front hub for a re-grease... i think the factory got it a bit TOO tight... Both sides of the axle were that ridiculously tight.
they also forgot to put in the grease.... it was bone dry.
