An X-Acto knife, also known as a craft knife or precision knife, is a cutting tool typically used for crafting, modeling, or DIY projects. There are a variety of synonyms for this tool, including scalpel, razor blade, hobby knife, precision cutter, and utility knife. These synonyms refer to similar cutting tools that offer precision and control. Scalpels are commonly used in medical settings for their precision cuts, while razor blades are often used for shaving or cutting thin materials. Hobby knives are similar to X-Acto knives, but may come with different blade shapes and sizes. Precision cutters and utility knives are also versatile cutting tools that can be used for a variety of projects.