Who knew there were 2 sizes of T47i?
"Just when you thought bottom bracket standards couldn't be any more complex, turns out they are! Two diameters and notch patterns - both T47i. so this was perfect to remove a broken SRAM DUB BB. Before using a lovely Chris King tool to put in the new Chris King BB (which is the smaller, less notches T47i) cheap tool, but does the job fine."