Features1Quality Material: Made of chrome molybdenum steel with high hardness for great durability and long term use. 2Fine Technology: Adopted CNC turning and quenching hardening heat treatment for better performance during use. 3Feature: Lengthen barrel body, need to use with adjustable wrench, clockwise tight, counterclockwise loose. 4Suitable Model: Suitable for DT Swiss5 planetary ratchet drum, compatible with 240S 240 340 350 440 540 and other planetary ratchet wheel sets 5Wrench must be locked, such as very difficult to loose the situation, do not vigorously disassemble to avoid tool burst knock against the axis (more reliable method is to knock the drum axis out, several attempts).SpecificationItem Type: Rear Hub Locking Removal Installation ToolMaterial: Chrome Molybdenum SteelColor: As Picture ShownApplication: For DT Swiss Star Ratchet Hub 240S 240 340 350Weight: Approx.85g/3.0ozPackage List1 x Rear Hub Locking Removal Installation Tool