This industrial quality hammer tacker has been designed to be light and easy to use for those special applications requiring a lighter touch than the G-11 hammer tacker, but with all the same features: easy to load, and easy to dismantle if necessary, and a non-slip grip. Two models are available, differing only in the staples used: G21/1 uses A19 type staples to 3/8”, while G21/2 is designed for JT21 or Markwell T207 type staples, ¼", 5/16" and 3/8” leg lengths.