When it comes to purchasing a katana sword, there are numerous factors to consider in order to choose the perfect one. From the type of steel used to the craftsmanship and authenticity, finding the best katanas can be a daunting task. In this comprehensive buying guide, we will explore everything you need to know about selecting the perfect katana sword. Before diving into the buying process, it is important to understand the different types of katana swords available on the market. Traditional Japanese Samurai Swords are typically classified into three main categories.