1-1/2 Inch 18 Gauge Cap Stapler

The 1-1/2 Inch 18 Gauge Cap Stapler (N3808APM) is a professional-grade pneumatic cap stapler designed for fast, secure fastening of housewrap, roofing underlayment, insulation, tar paper, and other weather-resistant building materials. Engineered for roofing contractors, siding installers, and construction professionals, this high-performance stapler combines powerful fastening capability with lightweight handling to maximize productivity on demanding jobsites. Weighing only 4.8 lbs, the N3808APM offers excellent balance and maneuverability, making it ideal for prolonged overhead and exterior installation work.

Built for reliable fastening performance, the N3808APM drives 18-gauge, 7/16" crown staples from 7/8" to 1-1/2" in length through durable 1" plastic caps, creating a secure hold that helps prevent tearing and improves material retention in demanding weather conditions. Its high-capacity magazines hold 200 staples and 200 caps, reducing reload frequency and increasing jobsite efficiency. The tool-less depth adjustment enables precise fastener placement across a variety of building materials, while the 360° adjustable exhaust directs air away from the operator for improved comfort. The tool is supplied with a sequential trigger installed for precise fastening, and an optional contact (bump) trigger is included for faster production work when higher installation speed is required.

Operating between 70 and 120 PSI, the N3808APM delivers dependable pneumatic power while maintaining excellent control and accuracy. Its lightweight construction, large magazine capacity, and professional-grade features make it an ideal fastening solution for housewrap installation, synthetic roofing underlayment, insulation boards, tar paper, and other exterior building envelope applications where secure fastening and long-lasting performance are essential.

Key Features

• Professional pneumatic cap stapler for housewrap, roofing underlayment, insulation, tar paper, and exterior construction
• Drives 18-gauge, 7/16" crown staples
• Accepts staple lengths from 7/8" to 1-1/2"
• Uses 1" plastic caps for superior holding power and material support
• High-capacity magazines hold 200 staples and 200 caps for extended operation
• Tool-less depth adjustment ensures precise staple placement
• 360° adjustable exhaust directs air away from the operator
• Sequential trigger installed for accurate fastening
• Optional contact (bump) trigger included for increased installation speed
• Lightweight 4.8 lb design minimizes operator fatigue
• Excellent balance improves comfort during extended overhead work
• Operates efficiently with 70–120 PSI air pressure
• Ideal for housewrap, synthetic roofing underlayment, insulation, roofing felt, and weather barrier installation

Specifications

• Model: N3808APM
• Tool Type: Pneumatic Cap Stapler
• Staple Gauge: 18 Gauge
• Staple Crown Width: 7/16"
• Staple Length Capacity: 7/8" – 1-1/2"
• Staple Capacity: 200 Staples
• Cap Diameter: 1"
• Cap Capacity: 200 Caps
• Cap Type: Plastic
• Depth Adjustment: Tool-less
• Adjustable Exhaust: Yes (360°)
• Operating Pressure: 70–120 PSI
• Tool Length: 14-1/8"
• Tool Height: 8-7/8"
• Tool Weight: 4.8 lbs