Overview
This replacement piston driver is manufactured to OEM specifications for pneumatic and battery-powered nailers. A worn piston driver is one of the most common causes of inconsistent nail depth and tool jams. Swapping in a new driver assembly is a cost-effective repair that extends the working life of your nailer significantly.
Key specifications
- Aftermarket piston driver assembly
- Direct OEM-equivalent replacement
- Includes o-ring(s) for proper cylinder seal
- Precision-machined for consistent nail depth
Compatibility
This piston driver is designed to fit Metabo nailers as specified in the compatibility listing above. Always cross-reference the full model and type number stamped on your tool’s nameplate before ordering.
Installation notes
Always depressurize the nailer and disconnect power before servicing internal components. Access the piston driver by removing the cylinder end cap and nose assembly. Apply a light coat of pneumatic oil to the replacement driver’s o-ring before reassembly to ensure a good seal from the first shot.
Common questions
Q: Will the 885-667 Piston Driver Blade fit my Metabo NT65M2S, or is it only for the older Hitachi NT65M2 models?
Yes, this driver blade is used in the NT65M2 series and is compatible with the Metabo/Hitachi NT65M2S, NT65M2, NT65M2(S), and NT65M2SM finish nailers when matched to the correct piston driver assembly. Since these model names were used across both Hitachi and Metabo branding, the important part is the nailer model number and the matching 885-667 driver configuration.
Q: Can I install the 885-667 Piston Driver Blade by itself, or does it need to be replaced as part of the full piston driver assembly in an NT65M2SM?
That depends on how your current assembly is built and how the old driver is attached, but in many cases technicians replace the complete piston driver assembly to ensure proper alignment and seal performance. If you are installing just the blade, inspect the piston, seals, and cylinder for wear at the same time, because a damaged O-ring or cracked bumper can quickly ruin a new driver.
Q: What are the signs that the 885-667 driver blade on my NT65M2 pneumatic finish nailer needs replacement?
Common symptoms include nails not driving fully, frequent jams, bent fasteners, or a visibly chipped, shortened, or uneven driver tip. Before replacing it, also check that the tool has proper air pressure and that the correct finish nails are being used, since low PSI or mismatched nails can cause similar problems.
