Grip-Rite GRR11 A11-Style Hammer Tacker is perfect for installing house-wrap, insulation, and roof felt using 3/8 in. crown staples. Lightweight to reduce user fatigue, this rugged tool's all-steel construction keeps you swinging! Use for carpeting, felt paper, and poly sheeting. Versatile and easy to operate, the fast rear-loading design for efficient use on the job site.