Kross Workshop Cartridge B/bracket Tool with Handle BT-11TRegular price £15.99
"Professional workshop wrench for cartridge bottom bracket mounting and dismounting. Made of 4 mm thick, special tool steel S50C, handle is made of non-slip TPR material.
Shimano cartridge bottom bracket tool, suitable for both traditional and Octalink models. It works effectively and precisely without slipping or damaging the BBs."