A wooden katana, also known as a bokken, is not designed to cut like a sharp metal blade. Bokkens are typically made of solid hardwood, such as oak or hickory, and are primarily used for training purposes in Japanese martial arts like Kenjutsu and Kendo.

While a bokken can deliver impactful strikes, it is not sharpened to a fine cutting edge like a metal sword. The thickness and bluntness of the wooden blade make it less effective for cutting through materials. Attempting to use a bokken to cut objects like wood, fruit, or other targets that require a sharp edge is not recommended and can result in damage to the bokken or injury to the user.

The purpose of a bokken is to replicate the weight, balance, and handling characteristics of a real sword, allowing practitioners to practice sword techniques, forms, and sparring in a safe and controlled manner. It is an important tool for developing proper technique, timing, and distancing skills without the risk of using a sharp blade.

If you are looking to cut through objects, it is necessary to use a properly designed and sharpened metal sword that is suitable for cutting. However, it's important to receive appropriate training, follow safety guidelines, and exercise caution when practicing cutting techniques with any bladed weapon.