SM8 grooves are cut to the edge to maximize spin and shot control. Each groove on every head is 100% inspected for conformity, and a localized heat treatment is applied to the impact area to double the durability of the groove.
SM8 grooves are cut to the edge to maximize spin and shot control. Each groove on every head is 100% inspected for conformity, and a localized heat treatment is applied to the impact area to double the durability of the groove.