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square grooves(also "box grooves") see grooves
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square groovesAlso known as U grooves, these are found on the clubfaces of irons and wedges and assist in creating greater backspin than other legal types of grooves such as V grooves.
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square groovesAlso called “box”, “U”, and “Combination grooves. Face lines (or grooves) pressed, machined or cast into a three sided shape vs. a two sided “V” groove shape.
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