Description: Tool: This Bearing Puller Tool is specifically designed for motorcycle steering bearing steel bowls. It is not suitable for use with other equipment.Slide Hammers Design: The Gear Puller Set features a slide hammers design, not a screw puller! It should not be used with wrench to twist the screw, it can be tightened by hand.Thread Connection: The thread connection for the slide hammers /2"-12 (imperial thread), not metric M12. Do not force mismatched rods into the threaded hole as this could potentially damage the rod threads. You can weld a matching nut the back of the rod or tap internal threads if needed.Note: This Bearing Puller Tool cannot be used for steel bowls that are completely attached to the bottom and have gap of less than 2mm at the bottom.Material: The Bearing Puller/Remover is made from carbon steel, which is sturdy and can be used for a long time. Specification: 25cmx15cm/9.84inchx5.91inchAdjustable Size: 3cm/1.18inch to 6cm/2.36inch Package Includes: 1Bearing Puller Tool Note: Please allow slightly errors 1-2cm differences due to manual measurement.