FASTENING TOOLS Grado Powder-Actuated Nail Gun PD500 The Grado PD500 is a high-performance, semi-automatic powder-actuated nail gun designed for heavy-duty fastening applications. Engineered for professionals, this powerful tool provides a fast and reliable method for driving hardened steel nails into tough base materials like concrete, steel, and masonry, eliminating the need for pre-drilling. Featuring an integrated silencing function and adjustable power control, the PD500 offers a superior user experience by reducing noise and allowing for precise depth control for various applications. Its robust construction ensures durability on demanding job sites, while the semi-automatic action provides rapid, repetitive fastening, significantly boosting productivity. It's the ultimate tool for contractors in the electrical, mechanical, and general construction trades. Specifications Product Type: Semi-Automatic Powder-Actuated Nail Gun. Model: PD500. Power Source: .27 Caliber Powder Loads (Cartridges). Compatible Fasteners: High-velocity drive pins and threaded studs. Key Features: Integrated silencer, adjustable power regulation, semi-automatic firing. Base Materials: Concrete, Steel, Masonry. Applications Electrical & Mechanical: Attaching conduit clips, junction boxes, and cable trunking to concrete and steel. Drywall Installation: Fastening steel tracks to concrete floors and ceilings. General Construction: Securing wood-to-concrete, formwork, and insulation boards. Industrial Maintenance: General-purpose fastening in steel fabrication and plant maintenance. For fast, direct, and powerful fastening into the toughest materials, the Grado PD500 Powder-Actuated Nail Gun is the professional's choice for getting the job done efficiently and reliably. The professional tool for powerful and reliable direct fastening into concrete and steel.