ANTI SLIP HANDLE DESIGN: Bottom bracket thread tapping tool features an anti slip handle design that is both practical and visually appealing. This design ensures a comfortable grip for easy use and enhanced control. VERSATILE USAGE: Specifically designed for milling and inspecting bottom brackets, this tool is ideal for repairing damaged or shallow threads. It helps restore thread depth and enhances the overall functionality of bottom brackets. THREADING OIL APPLICATION: Before use, apply threading oil to the of the tap and the internal diameter of the bottom bracket to ensure smoothly and precise tapping on the same horizontal thread. If encountering excessive during tapping, back off a few turns to clear the chips before continuing. EFFICIENT CHIP REMOVAL: Bottom bracket thread repair screw tap tool adopts a deeper chip removal design to prevent chip aumulation during tapping, minimizing the of aluminum chips corroding. If you have any questions about the product, please feel free to contact us via email., Manufacturer: ASerZenith