Originally Posted by
dukeofearl
i bought some taps to rethread french cranks to accept 9/16 pedals. i've bought a couple tap wrenches but they are too small. local hardware store doesn't have anything bigger.
end of taps measure between 1/4 and 1/2" and that's the size wrench i bought, but it's way too small.
I may be a bit of a troglodyte but back when I found myself re-threading a bunch of French thread cranks to English, I clamped the tap in a bench vise and then threaded the crank onto the tap. It was relatively easy to keep the crank arm horizontal with the tap sticking straight up. Lots of thread oil and never had any issues.