Simple and economical, the Park Tool HHP-3 Home Mechanic Bearing Cup Press is designed to install all sizes of head cups (1" to 1-1/2") and one-piece bottom bracket cups. Will also press BB30 and BB90 (BB86, or BB92) system cups. The thread of the HHP-3 is 5/8" (16mm) diameter (nominally 16mm) and will work to press the BMX bottom brackets. HHP-3 has a maximum working length of 385mm. Park ToolHHP-3Home Mechanic Bearing Cup Press Features Its Simple and economical The HHP-3 is designed to install all sizes of head cups and one-piece bottom bracket cups More info