BUSHIBU Golf Club Groove Sharpener Tool, 3 Pack Stainless Steel Golf Club Cleaner for Re-Grooving Wedges & Irons, U & V-Grooves(Black/Silver/Green)Durable Flat Groove Sharpener-steel Groove sharpener Suitable for U-grooves and V-grooves. Can grind and clean grooves very quickly.This sharpener is made of high-grade precision tool vacuum heat-treated..