Shimano Hollowtech MTB - crank keeps walking off the spindle. : r/bikewrench
Amazon.com : VANICE Crank Adjusting Cap Tool for Hollowtech II, Road MTB Bike Bicycle Crank arm Bolt Tool for Shimano Hollowtech II : Sports & Outdoors
Shimano XT Hollowtech II 9 Speed Crankset: FC-M762 - 175mm x 44/32/22t (EXC+) - Bike Recyclery