O+P's UNISPEED USFL/01 MAN is a manual device that is designed to assist in the outdoor pre-assembling process of DIN2353 rings made from steel and carbon steel. This product can pre-assemble 6>42x4 mm materials at 24°. Aside from this pre-assembling capacity, this machine can flare 6x4>42x4 mm materials at 37°.