Choose Options Compare Pinhawk Pinhawk On Lock Putter Heads MSRP: Now: $64.95 Was: Pinhawk On Lock Putter Heads are specifically designed for the armlock putting method. Features: The Pinhawk On Lock putter is specifically designed for the armlock putting method. The armlock putting method has been proven to help you maintain... MSRP: Now: $64.95 Was: Choose Options Compare