Callaway’s new PM Grind 2019 wedge was co-created by Phil Mickelson and Roger Cleveland,
The original PM Grind started as a one-off prototype built specifically for Mickelson in 2014. It was characterized by a uniquely shaped head with an exceptionally high toe and expansive face area, including grooves spanning the entire face, both from side-to-side and up-and-down.
Mickelson’s satisfaction with the prototype led Callaway to introduce it to the public in 2015 .
This year, Mickelson began working with Clevelad on improvements to the PM Grind that make it easier to hit three essential shots Mickelson thinks every golfer needs:
The Knockdown: A low-flying, high-spinning shot for attacking the pin.
The Hit and Check: A short pitch that bounces twice and stops.
The “ Phlop”: The high-flying, steep-landing, fast-stopping greenside shot the became a signature shot for Mickelson.
Offset Groove-in-Groove Technology
Callaway’s Groove-in-Groove technology was introduced last year in its Mack D addy 4 wedge. It includes four micro-positive ridges machined into flat parts of the face, parallel to the grooves , creating 84 points of contact with the ball. The ridges form a micro-groove between them, which is why it’s called Groove-in-Groove. For PM Grind 2019, Mickelson suggested machining the micro-grooves into the face at a 20-degree angle, making them perpendicular to the target line. Callaway testing indicates that offset Groove-in-Groove placement promotes an increase of up to 12 per cent more spin on lob shots.
Increased Offset and a Higher Toe
Increasing the amount of offset in the PM Grind 2019 makes it easier to move the ball back in the stance and position the hands ahead of the ball, which is necessary to hit a knockdown. The higher toe, made possible by removing weight from the sole (represented by the four holes in the sole, each filled with a metallic green aluminum cap) pulls the centre of gravity location upward to promote a lower trajectory, with the added benefit of creating more space high on the face, which is helpful on lobs from tall grass.
The C-Grind, with significant relief at the heel and toe, is well-known for smooth and clean turf interaction, promoting solid contact from all types of lies.
PM Grind 2019 comes with a KBS Hi-Rev 2.0 steel wedge shaft designed to deliver and Lamkin UTX grip in black with green highlights. Two fnishes are available, including Platinum Chrome and the new Tour Grey. Both are further enhanced by the circular PM Grind medallion on the back.
Loft/bounce combinations include 54/14, 56/14, 58/12, 60/12 and 64/10 degrees, all available in right-handed and left-handed.
“Working with Phil on the PM grind wedges has been a fantastic experience,” said Cleveland. “His insights are always spot on and implementing them to create something innovative like the PM.Grind 2019 is incredibly satisfying. This wedge is going to help a lot of players hit shots they couldn’t hit before.”