Required tool for Shimano set screw?

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Chainring lockring tools from Park Tool. Machined flat face for optimal lockring engagement. 36mm hex drive to be used with Park Tool TWB-36 Crow Foot and a torque wrench to properly measure torque. For lockrings with 41mm outside diameter with 16 notches.

Park Tool LRT-4 - Shimano Direct Mount Lockring Tool

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Shimano Dura-Ace ST-R9120 Ultegra ST-R8020 Bleed Port Screw and O-Ring

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