Forged: The Mizuno 919 Hot Metal Irons are forged irons, which means they are made of premium materials and carefully assembled with a great deal of attention to detail. The technology behind these irons is impressive and will make you feel the difference in terms of distance and forgiveness. In fact, they have the lowest MOI among all the hot metal irons on the market right now (see below)
Hot Metal: These are also known as multi-materials irons. The hot metal technology uses a mixture of metals in order to create an iron with a higher level of forgiveness. This type of iron has had great success in terms of distance and it is typically used by professionals who want to hit more golf shots than ever before.
mizuno 919 forged or hot metal