Joined: Jun 2019
Posts: 166
Likes: 76
From: British Columbia, Canada
Bikes: 1970's Piasentin Super Vitus 971, 1979 Carlton Professional, 2005 Trek 5000, 2011 Niner EMD, 2018 Argon 18 XRoad, 1990 Diamondback Master TG Centurion
Sugino Autex Self-Extracting Crank Bolts
I know some people here on BF don't like the Sugino Autex system as they believe that it's difficult to tighten them to an adequate torque spec, but I'd much rather break out a long-levered 6mm hex wrench than faff around with a crank bolt extractor and wrench.
https://www.velosolo.co.uk/suginoext.html
Sugino Autex Self-Extracting Crank Bolt and Sugino Might Tour Compact Crankset