The new STX Thermoset insert is chemically formulated to produce the highest coefficient of friction in the game. The combination of the soft material and high friction keep the ball in contact with the face longer to maximize forward spin and increase feel.
For those who prefer putters without inserts, STX now offers the feel and sound of traditional milled stainless steel. By utilizing our new Deep Diamond milling pattern, we were able to produce a non-insert putter with similar performance characteristics to a soft insert putter. The Deep Diamond mill pattern increases friction to promote forward roll and produces the soft feel desired by the best players in the world.