Efficient 12 notch 50 4mm OD Bottom Bracket Tool for Chris King Thread
12-notch 50.4mm OD: for Chris King Thread，for TMT47; for Chris King Thread ，for SRAM-DUB T47; Praxis T47. 16-notch 52.2mm OD: for Enduro-PF30; for Enduro-T47. 1x Bottom Bracket Tool. Material: Aluminum.