The BC58 is SENCO’s cap stapler that drives 21-gauge ½” crown, 5/8” staples with plastic caps. A cap stapler helps to increase the overall holding power of the fastener by spreading tension over a greater surface area. Which makes this type of fastener better able to withstand harsh weather conditions protecting the housewrap or felt insulation from separating or tearing. SENCO’s BC58 is an extremely lightweight stapler weighing in at only 4.1 lbs. The tools maneuverability and ease of use is ideal for roofing contractors who frequently install housewrap, roofing felt, foam board, and more.