With this tool, which is on par with the original Shimano tool, NECO compact bottom brackets can also be disassembled and assembled.
The special tool can be used with a 1/2" ratchet, a 19 mm open-end wrench, or a 24 mm box wrench.

For Shimano compact bottom brackets BB-UN90/91, BB-UN70/71, BB-UN51/50, BB-CS21/20, BB-CS11/10, BB-LP30/20.