Replacement Piston Driver for Hitachi NT65MA2 NT65MA3 NT65MA4 Nailers 884-330

replacement driver with o-ring for the Hitachi NT65MA2, NT65MA3, NT65MA4, NT65MA4(S) guns. This comes with a patent pending locking mechanism which will not allow the driver to unscrew from the piston. Aluminum is crimped into the unilok grooves of the shaft to prevent unscrewing. Guaranteed never to unscrew.

Features:

• Heat treated tool steel 6150 - Rockwell hardness 50-52
• Aerospace grade #2024 Aluminum piston
• Mechanically locked piston driver interface
• Part number 884-330