General description Allows for the quick and easy installation of press fit bottom brackets without risking damage to the frame. The stepped plates clamp either side of the axle, allowing the force screw to be turned, pressing the bearing cups into the bottom bracket shell. This tool covers a range of different bottom brackets, ensuring the correct fitment of press-fit bottom brackets. Technical specifications Fits: BB30, BB86, BB386, and PressFit GXP Stepped plate to fit sealed bearings with inner diameters of 24mm and 30mm Manufactured from chrome molybdenum Usage Designed for the installation of press-fit bottom brackets Comfort grip for ease of use