UST mamiya Recoil 600 Series Iron Shaft Recoil 670 F4/S Individual Irons which has steel bordering the

which has steel bordering the center cutout

A larger 190cc head design features precision weighting and strategic CG placement for explosive distance

Along with stiffening the body

MAXIMUM DISTANCE

窶｢ Non skid backing

UST mamiya Recoil 600 Series Iron Shaft Recoil 670 F4/S Individual Irons which has steel bordering theOverview Recoil 660 Recoil 660 iron shafts are for the player seeking a lightweight option and a mid high ball flight. Recoil 670 Recoil 670 iron shafts are for the player seeking control and a mid high ball flight in a lightweight option. Recoil 680 Recoil 680 iron shafts are for the player seeking control and a medium ball flight. Features Efficient Energy Transfer (67% more efficient than steel) Optimal spring effect in the walls of the shaft for