Features: * new and high quality *Made of high quality material, durable and practical to use *Advantages: 6061 aluminum alloy high-precision CNC, high precision, cogging depth is 10.5 mm, not only large area with the bottom bracket, but also an agreement of more than 95%, it will never slip --5 mm, less area with the center shaft, and the general tools are all stamped or cut, the tooth shape accuracy and finish are very poor, a little harder the center shaft will have deep marks or even slip, resulting in new The bottom bracket is completely scarred) *This tool can be used repeatedly, and there is no problem with the strength. The locking force of the middle shaft is only 45-80NM. This strength does not feel to the tool. The strength of this tool is much higher than that of the middle shaft. The tool is easy to slip because the fit with the center axis is not high enough. The tool is recommended to use with a 1/2 ratchet wrench, which not only has a strong locking force, but also a stable force *The following are four specific models: DUB: suitable for disassembling 12 tooth and 24 tooth DUB bottom bracket BB39-16: Suitable for installation and disassembly of the 16-tooth BB9000 BB9100 XTR DA screw-in BB93 bottom bracket with 39 mm outer diameter BB40.5-16: Suitable for the installation and removal of the 16 tooth center axis with an outer diameter of 40.5 mm MT800 BBR60 XT / M8000 SLX / M7000 UT105 kit center axis BB44-16: of the most commonly used tools is suitable for the installation and removal of the 16T center axis BB51 BB52 BB70 BB71 RS500 MT500 center axis and center axis PROWHEEL axis XIF series center axis and market Most of the 44 mm diameter 16 tooth central axis Specifications: *Material:6061 aluminum alloy *Color:As Pictures Show *Optional models:DUB12T-24T,BB39-16,BB40.5-16,BB44-16 Package Contents: 1 * Removal tool Note : 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.