Shimano center lock tool
thingiverse
I first printed the Shimano CenterLock Disc Brake Tool by rsilvers in PLA. But the square did not stand opening the nut, neither to torque down to 40Nm. I added a hexagon, so you can use a 32mm nut with your torque wrench to open/close the srew nut. printing in ASA (without housing), 80% infill was sufficient to torque down the nut with 40 Nm using the square w/o a nut. (opening the screw nut needed more torque, so the hexagon was usefull...)
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