Light, durable composite construction for long life. Provides a convenient way to smoothly and quickly position a bearing in the inner hole of an axle. Includes a handle grip and six heavy-duty bearing drivers. The drivers have different diameters in order to match different-sized bearings, and three of the drivers are formed with two different diameters. Comes in a convenient blow molded case Bearing driver sizes: . 1.555" (39.5 mm) 1.752" (44.5 mm) 1.968" (50.0 mm). 2.322" (59.0 mm) 2.48" (63.0 mm) 2.559" (65.0 mm). 2.834" (72.0 mm) 2.992" (76.0 mm) 3.189" (81.0 mm)