This M-4 Piper Control Yoke Taper Pin Tool is a specialty tool that was designed to counter the frustration of removing the Piper control wheel taper pin per the recent AD. With the aid of the M-4 tool, even the most stubborn taper pin can be removed in minutes, not hours, without vibration or stress being induced on your aircraft or the surrounding delicate instruments and avionics. The tool is self-indexing, locking the taper pin in position and securing itself in place for easy pin removal. Quality made in the USA and precision milled from bar stock for maximum strength, the body is Cad Plated for corrosion resistance and the press screw is Grade 8 to assure long life. For more information call (877) 477-7823 or visit www.aircraftspruce.com and reference part number 12-02620.