This is the Park Tool HHP-2 Headset and bearing press. Park Tool has the answer to your headset and cartridge cup pressing needs. The HHP-2 accurately aligns and presses 1", 1-1/8", 1-1/4", and 1.5" headset cups. In addition, it presses cartridge bearings and cups into one-piece bottom bracket shells and holds fixed cup wrenches firmly in place when removing or installing adjustable-type bottom brackets. Features: Aligns and presses 1", 1-1/8", 1-1/4", and 1.5" headset cups Quick-release design for fast tool installation and removal Extra long (30cm) handles for superior leverage Stepped bushings for precise cup alignment Includes the 530-2 adaptors for alinging 1" and 1-1/8" pressed headsets. The adaptors are stepped at 25.7mm, 29.7, and 32.8mm.