Solid Material: The bearing puller is made of carbon steel, the mandrill tip, through a special heat treatment process, firmer and more durable. Extended Space: The scraper can be rotated on both sides, which can stretch and work space. Adjustable Size: Double gear puller with adjustable clamping depth, suitable for gears and bearings of different sizes. Multiple Applications: Ideal for car flywheel, motorcycle, bicycle, pump bearing, generator bearing, machinery bearing, etc. Reinforcement equipment. Note: Please allow 1-3cm error due to manual measurement. Thanks for your understanding.Note: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.