The Max USA HN120 replaces your powder actuated system for driving fasteners through wood into concrete or steel. The high pressure pinner requires no powder load, provides less running cost, and shoots more consistently and safer. The HN120 will shoot plastic collated pins from 1" to 2-1/2". the HN120 is ideal for applications such as wood to concrete, wood to steel I beam, drywall track to concrete, drywall track to steel I beam. The HN120 will only work with official Max USA pins.