Motion Pro is dedicated to producing the most versatile, unique and durable products for professional and home use. Motion Pro tools are designed to be simple to use, yet durable enough to withstand the harshest conditions. One of their goals is to offer tools of convenience. Do it right the first time with Motion Pro Tools. Versatile design features a 22 mm hex and 3/8" square drive. Precision design prevents damage to the retainer ring after peened stakes have been removed by drilling. Detailed Specifications: 44 mm, to remove and replace the rear wheel bearing / seal retainer ring, part number 41231-KZ4-000.