Suitable For: This crank puller is suitable for square hole central axis and splined center shaft, offering compatibility with common crank designs. NonSlip Design: The bike crank extractor puller features a nonslip grip for secure handling and controlled operation during removal. Easy Installation: This professional crank extractor puller is straightforward to install and portable, making onsite repairs easier and more efficient. Auxiliary DropOff Prevention Column: This auxiliary tool helps prevent dropping during installation, ensuring a secure and stable connection for your crank. Key Benefits: Clear compatibility with squarehole and splined crank systems for versatile use Improved grip and handling to reduce slippage during extraction Simple, quick setup for professional or DIY repairs Added safety and reliability with a dropoff prevention column to maintain alignment Use Scenarios: Home workshop maintenance: Remove and a worn or damaged crank on bikes with squarehole or splined cranks, with secure alignment and minimal risk of slippage. Onroad or field repairs: Carry this tool for quick crank removal and installation during roadside service or remote repairs, reducing downtime. Bicycle workflow: Streamline crank removal across multiple bikes with compatible crank types, improving efficiency and consistency in repairs.