Tuning Lever for 4mm pins - metal handle

Tuning lever with all metal handle for small 4mm tuning pins - 4mm is the diameter of the pin

Used almost exclusively on little John Morley 3 octave clavichords only with 4mm tuning pins - this measurement is the diameter of the circle not the width of the square head - this is too small for most instrument and is not for Morley spinets, harpsichords or the larger 4 and 5 octave clavichords or pianos)

Reference : 4mm metal (square head)