New to M2 irons, engineers incorporated Face Slots that help preserve ball speed on shots struck toward the heel or toe, giving golfers more distance and more control—making your mis-hits better and your best shots extraordinary.
Additionally, the M2 irons incorporate a new thin-wall Speed Pocket, designed to increase face flexibility and protect ball speed on strikes below face-center while also increasing launch angle and ball speed.
Further improvements include a new thinner, wider, six-sided Fluted Hosel that saves 5 grams (compared to 3 in the original M2 iron), allowing for the repositioning of 2 grams of discretionary weight lower in the clubhead. The new hosel bend slot also allows for a 30% improvement in bending.