The 4501 Fast-N-Flator makes troublesome standard bore inflating jobs faster, easier, and with no hassles. When your customers need to inflate a big floatation tire on a pick-up truck but also need to remove the core to get the beads to the seat and then it pops loose when they try to put the core in! Or they dont get the core torqued correctly and their customer returns with a slow leak because the service tech got in a hurry after the tires took several minutes to get to the correct PSI. Fast-N-Flator is the answer.