Shimano's bottom bracket SM - BBR 60 purchased for installation. We use "adapter for Holo Tec II BB unit mounting" through an adapter, but as expected it is a genuine tool, it fits perfectly. I attempted to install it on a tool other than the Shimano but it can not be used because the dimensions do not match. Although it is necessary to tighten with the torque of 35 to 50 N · m to install BB, I think that it is impossible with the length of the handle of this tool. It is not a shape that can manage torque, and it is necessary to use a torque wrench with a tool such as TL - FC33. It should be considered simple use.
Shimano's Holotec II is a tool required for BB installation. I tried to substitute water pump pliers, but I was concerned that scratches were worried, I also purchased a special tool later as though it was not closed. Although it is not much tool, it is not a rarely used tool as it is cheap as it is, so amateur is a sufficient tool.