Bicycle crankarm tap wrench with left & right taps | Llaves de grifo para bielas ( /pedales ) con machos roscados In Stock Now

Two taps, left and right, plus straight-handle tap wrench.

Use for bicycle crank-arms, to chase the pedal threads. The tap labeled “L” is for the reverse-threaded crank arm on the left side as you ride or stand over the bike.

Intended application: cleaning up existing threads in the cranks -- versus cutting new from scratch and/or preparing to install a bushing kit.

We found one how-to video on YouTube:

https://youtu.be/QokAn-WigZg

It is best to use cutting oil while chasing the threads. Regular oil will do -- even 3-in-1 -- if you don't have cutting oil. But you must use oil!

LIBRARIANS: when checking in, be sure to check all items are in the bespoke case:  two handle parts and their screws; two taps. Six individual pieces.