Titanium-Forged Construction

A brazed titanium face is paired with a forged steel body to combine speed and feel within a single structure. The titanium face increases ball speed and efficiency, while the forged body preserves the soft, responsive feedback of a traditional iron.

Ai Smart Face Technology

The titanium face is engineered using Ai-driven design to optimise ball speed, spin, and dispersion across a wider area. This supports more consistent performance, even when contact moves away from the centre.

Increased Ball Speed and Forgiveness

Titanium allows for greater face flex compared to steel, creating higher ball speeds and a larger effective hitting area. This leads to more consistent distance and improved carry across the set.

Urethane Microsphere Integration

Urethane microspheres sit behind the face to fine-tune sound and feel. They allow the face to flex freely while dampening unwanted vibration, creating a softer, more controlled impact sensation.

Chrome Plated Finish

A proprietary Callaway process enables chrome plating on titanium, delivering a clean, polished finish. It introduces a more traditional aesthetic while maintaining the advanced material construction beneath.

On-Course Performance

The Apex Ti Fusion irons launch easily and maintain speed across the face, producing a stable, consistent flight. They offer the distance and forgiveness of a modern multi-material iron, with a more refined feel and feedback through the strike.

Specifications

Built In-House at Nine by Nine

Every set is assembled in-house at the Nine by Nine Golf workshop by a single master builder and finished to tour-level tolerances before dispatch, ensuring complete consistency throughout the set.