Condition: Used – Good Working Condition. This OEM Haas Tool Release Piston (TRP) was removed from a 1993 Haas VF-3 vertical machining center that was in full operational service. It has been cleaned, inspected, and shows standard cosmetic wear consistent with normal use. No cracks or leaks observed at time of removal. Function: Controls the pneumatic actuation of the drawbar for tool clamping/unclamping. Mounting: Bolt-on under spindle head with integrated pneumatic ports. Material: Anodized aluminum body with internal piston seals. Includes: Piston housing assembly only (no solenoid or air lines included). Condition: Clean threads and fittings; no stripped holes; smooth actuation. Genuine Haas OEM component (not an aftermarket clone). Restored from a running 1993 VF-3 machine. Compatible with umbrella and early side-mount tool changers. Leak-free and ready to install with new O-rings (recommended). Some external wear and light residue from normal shop use. Tested manually for free movement; not bench-tested under air. No visible structural damage. Designed for direct replacement or repair of early Haas VF-series vertical mills, including VF-1 through VF-4. Compatible with 40-taper spindle configurations.