SPEED REDUCER 6 12 23 - SPEED REDUCER - 23 to 12 CM to 6 CM diameter = 9 inches to 6 inches to 3 inches With 3" 6" 9" pulley, 1/2 -1/3 sewing speed



SPEED REDUCER 12 23 - SPEED REDUCER - 23 to 12 CM to 6 CM diameter = 9 inches to 6 inches to 3 inches With 3" 6" 9" pulley, 1/2 -1/3 sewing speed

