MG4 Wedge - ChromeLASER SCORING FOR BETTER SPIN Milled Grind 4 utilizes laser etched Spin Tread and a raw face to provide better bite around the greens and superior spin in wet conditions. Refined shaping creates a smooth aesthetic that inspires creativity around the greens, while improved mass distribution provides a solid feel. IMPROVED SPIN IN WET CONDITIONS Spin Tread technology utilizes laser etching to channel away moisture and help retain spin in wet conditions.