Arrow Powershot Advanced Forward Action 2-in-1 heavy-duty stapler/nailer gun that is powerful and easy to use. With its Torsion Drive TM technology and a pre-loaded torsion spring, this stapler requires 34% less work as compared to the Arrow T50 stapler. It has a shorter grip and is easier to squeeze, making it comfortable for hours of continued use. The push handle and bottom loaded magazine make it easy to load and use. The die cast aluminum housing ensures durability, while the limited lifetime warranty provides peace of mind. Ideal for insulation work, upholstery, and many DIY projects, this stapler uses standard T50 staples from 1/4" to 9/16" and 5/8" & 9/16" brad nails.