The precision and feel of Mizuno ™s Grain Flow Forged HD process suits the manufacture of wedges like no other. Perfected for over 50 years at one factory in Hiroshima, Japan - Mizuno ™s forging expertise is revered for its consistency of manufacture, distance control and incredible feedback. A reputation most commonly associated with Mizuno irons, but with even more payback in the wedges where touch and feel are most critical. TECHNICAL DETAILS Grain Flow Forged HD: One-piece Grain Flow Forged HD from 1025E Pure Select mild carbon steel at Mizuno's iconic facility in Hiroshima, Japan " where Mizuno irons have been produced since 1968. 1025 Boron: A carbon steel that features 30% greater strength Harmonic Impact Technology: Fine tuned head geometry delivers ideal impact feel and feedback Quad Cut Grooves: Milled narrow/deep grooves optimized for stronger lofts and wide/shallow grooves optimized for higher lofts Hydroflow Micro Grooves: Laser etched microscopic grooves help channel away moisture for maximum spin in wet conditions Face Milling Lines: Increased surface roughness to increase spin nearer the green Loft/COG Flow Design: The COG of the wedge flows throughout the set to give more control and versatility Bounce Specific Sole Grinds: Matched bounce and sole grind for an ideal level of versatility Loft Specific Head Shapes: Graduated head shapes from pitching wedge to lob wedge ideally suited for how each wedge is used