The DT-5.2 is engineered and built to accurately face front or rear disc brake mounts so they are precisely aligned to the rotor.The previous DT-5 can be upgraded with the new features of the DT-5.2 by purchasing the DT-5UK.Features:- Faces any IS mount, post mount, or flat mount, including low clearance chainstay mounts- Telescoping axle adaptors allow use with any configuration of open or thru-axle dropouts and dropout widths (including Boost 110, Boost 148 and all fat bike axles)Includes two facing cutters:- IS mounts- Post and flat mounts- Includes storage case