Upgrade your power tool with these high-quality aftermarket Metabo HPT Hitachi 877323 piston drivers. This pack of 3 new parts with model numbers NR83A, NR83A2, NR83A3, and NR83A5 is compatible with both Metabo and Hitachi brands. Whether you're a professional contractor or a DIY enthusiast, these replacement parts will ensure the smooth operation of your power tool and help you get your job done quickly and efficiently. Don't let worn-out parts slow you down - invest in these new piston drivers today!