Mizuno M Craft Type IV PutterMizuno M Craft Type IV Putter The M Craft Putters from Mizuno is a fine milled putter line at an incredible value. The optional weight kit is included to allow the player to really dial in their swing weight and precisely fit their stroke. Each model is forged from premium 1025 mild carbon steel, then CNC milled for an exceptional feel and roll on every putt. The Type IV is a deep square back blade style with a slant neck. This promotes a moderate toe