Abstract: Force multiplication device comprising a low power reciprocable force output device serving to energize, near the end of low force stroke thereof, a coaxially aligned coupling mechanism serving to interconnect to rear shaft of said low force reciprocable force output device, a high power reciprocable force output device comprising a plurality of coaxially disposed, connected and cooperating air cylinders resulting in availability of multiplied force throughout remainder of stroke of low power reciprocable force output device.