Abstract: An insertion head assembly adapted to form insert pins of different lengths includes a first body portion including a transport mechanism for supplying wire to be formed into pins and a pair of jaws operatively connected to the transport mechanism having a beak disposed on each of the jaws. The jaws and the beaks open and close to score wire passing therebetween thereby forming the pins. The assembly also includes a second body portion adapted to receive the pin scored by the first body. The second body includes a fluid actuated pin insertion mechanism responsive to the length of the pin having a pin receiver operatively connected to a punch which pushes the pin from the receiver until the pin exits the insertion head assembly.