Features Durable Construction: Crafted from premium materials and treated with fine workmanship for long-lasting performance and reliability Versatile Size Options: Includes 4 different sizes, allowing you to choose the perfect fit for your specific riveting needs Easy Replacement: Designed for effortless swapping, making it convenient to replace broken components and maintain your pneumatic tool Compatible Design: Specifically engineered for use with pneumatic nut nail guns, ensuring optimal performance and functionality Professional Precision: Delivers accurate and efficient riveting, making it an essential tool for any professional or DIY enthusiast Features: 1、100% and 2、This gun head is used with pneumatic nut nail gun, and cannot be used alone. 3、This package includes four various sizes for you to choose 4、Convenient to replace the broken one 5、Adopt premium material and treated by fine workmanship, Specification: Features: 100% and This gun head is used with pneumatic nut nail gun, and cannot be used alone. This package includes four various sizes for you to choose Convenient to replace the broken one Adopt premium material and treated by fine workmanship, Specification: Size: M5, M6, M8, M10 (Optional) Shank: Hex straight shank, Hex clamp shank(Optional) Weight: Approx.94g~118g/3.3oz~4.2oz Package list: 1 set x Rivet Nut Head kit Package List