The 54mm RMS Delay Drilling Tool is designed for shortening RMS and RMS-Plus delay elements to adjust the time delay of an AeroTech RMS 54mm reloadable motor.The ends of the tool are counterbored with recesses that are labeled with 4 or 8 second reductions in the delay time. To use, the RMS or RMS-Plus delay element is placed into the desired end of the tool and held firmly in place, the drill bit is inserted and the knob is rotated clockwise until the bit is fully seated in the delay and no resistance is felt. In addition, a supplied 1.5mm thick washer may be placed between the drill tool body and the drill knob to shorten the delay to an intermediate value.