The Stinger CH38A auto-feed hammer cap stapler is one of the only tackers that shoots both staples and caps in tandem. This inexpensive cap stapler is significantly improved compared to its predecessor, the CH38. Instead of manually advancing each cap, the CH38A features an auto-feed mechanism for ease of use and increased productivity. This Stinger hammer stapler drives 3/8" leg A-11/T-50 series staples with plastic caps. Excellent tool for installing roof paper, house wrap and more.