The Big Drift Kit is an add-on kit for the popular Abbey Bike Tools Modular bearing press. We already enjoy the effectiveness of the Modular bearing press for pressing headsets, bottom brackets, and larger hub bearings, and this kit expands that versatility to even more bearing sizes and styles. The Big Drift Kit includes drifts for most common bicycle bearings with an inner diameter of 15mm or larger, including the over-axle drifts required to install bearings in DT, Zipp, and other modern sealed bearing hubs. The drifts feature a 1/2in inner diameter and can be used with other presses if need be. The kit also comes with a revised thrust plate (large green piece in the photo), which is required for use with Abbey Modular bearing presses purchased before January 1st 2019.