nU Groove Sharpener - Golf Club Groove Sharpener, Re-Grooving Tool and Cleaner. The nU Groove Sharpener is Made in the USA! Legally sharpen Square, U and V grooves on all your golf irons and wedges. Generate maximum spin just like a PGA Professional does. Works on all major brands such as Ping, Titleist Vokey, Nike, Mizuno, Cleveland, Taylormade and more! Made from a high grade precision tool steel that is heat treated to 64 on the Rockwell Scale, it gives you the perfect cutting edge to restore your clubs back to NEW! The grooves of wedges and irons wear out quickly over time thus resulting in decreased spin (RPMs). Why keep spending $100 a year to replace your perfectly fine wedge when all you have to do is re-sharpen it to save yourself money! Sleek stylish highly polished solid aluminum bar handle in silver color Comes with a plastic protective end cap & Instructions