The traditional design and different sole and bounce options, allowed golfers of all calibers to appreciate the impact these wedges could have on their short game. In the beginning, Cleveland developed the 588 wedge range which was possibly one of the best known and used wedges in golf. The theory is that the deeper the grooves, the more disbursement of debris and water occurs at the point of impact.Ī simple comparison is a tread on car tires: Tread disperses water and allows more rubber at the point of contact. The main impact of these rules affects the amount of spin that can be generated from the rough and wet grass. Lofts of 25 degrees and higher must have round grooves. Deeper and wider grooves must be further apart than those which are shallower and narrower.ħ. Minimum spacing is 3 times the groove width and not less than 0.75 inches.Ħ. Dimensions of each groove are limited to 0.035 inches wide and 0.020 inches deep.ĥ. The cross-section of the groove must be symmetrical and not converge.Ĥ. Grooves must be straight, parallel, and consistent on the face layout.Ģ. In 2010 the USGA brought in new rules to control the type, width, and depth of grooves on clubs with 25 degrees loft or higher.īelow is a simplified version of the groove rules:ġ. There is still constant debate about grooves. First came the V-grooves, then the U-shape followed by the so-called Square-grooves, which put an incredible amount of spin on the ball from the fairway and more importantly from the rough.
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