mechanical drum tuning key
a motorised tuning key for a drum that will cut down the time of changing drum heads to less than half.
a motorised tuning key to put on and take off the lugs of a drum. the key is motorised that you don't have to manualy turn the key but a motor, much like a power-driver, will do all the work for you and cut down your head changing time and tuning time in half of more.
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