Part Number: 885917 Package Includes: 1 aftermarket piston driver (as shown in product images) Compatible With: Hitachi NR90AD Hitachi NR90ADPR Key Features and Benefits: Precisely engineered to match the original specifications for reliable performance. Durable construction designed to withstand impact during heavyduty use. Smooth operation helps maintain nailing speed and reduces downtime. Simple installation allows you to quickly worn or damaged parts, keeping your tool in working condition. Function: The piston driver is a critical component in your nailer, responsible for driving nails cleanly and efficiently into material. Replacing a damaged or worn piston driver helps restore full tool performance, ensuring consistent results on every project. Material and Performance: Manufactured from strength metal for long service life and dependable operation under demanding job site conditions. Resistant to wear for extended use without frequent replacements. Application Scenarios: 1. Ideal for framing carpentry where reliable nail driving ensures sturdy and accurate construction. 2. Suitable for deck building projects, providing consistent penetration into hardwoods and treated lumber. 3. Effective in general construction tasks where speed, accuracy, and tool reliability are essential. This piston driver is designed for professionals and DIY users looking to maintain the efficiency and lifespan of their Hitachi NR90AD or NR90ADPR nailers. It ensures your tool remains ready for precise, performance work across a range of demanding applications.