Economical and easy to use, this tool is made up of two machined aluminum handles, 1/2` UNC threaded rod, and one machined aluminum frame driftEach drift is machined with multiple steps to fit common bottom bracket shell and bearing diameters listed in the Compatibility tab belowKit includes: 6802/29 OB 1/2` (x2), 22x37 Drift 1/2` (x2), 6806 OB 1/2` (x2), 24x37 OB 1/2` (x2), 1/2` Frame Drift, and 1/2-13 x 9.7` Threaded Rod UNCBearing PressRedBP0006UPC/EAN/GTIN: 811079027085