Brake hose extension- 3 cm adaptor for extension of brakehose or clutchhose universal Details: Mounting generally without bleeding , the adapter must be used with an M10x1.0 thread. In this case, the included banjo bolt is used to mount the adapter to the master cylinder. 3 cm adaptor for extension of brakehose or clutchhose universal Details: Mounting generally without bleeding , the adapter must be used with an M10x1.0 thread. In this case, the included banjo bolt is used to mount the adapter to the master cylinder.