Blade Types
When you think of a box cutter or utility knife, you probably think of those designed with a standard straight blade. This is an ideal knife for cutting boxes but, there are also utility knives with specialized blades to handle other tasks such as cutting up carpet or scoring materials.
For example, if you’re working on a specific job like scoring cement backer board, opt for a utility knife with a scoring blade. Scoring blades are also ideal for other jobs such as cutting and trimming acrylic and polycarbonate plastic sheeting.
Hook nose blades are another popular blade type. These are used for used for a variety of jobs from opening packaging to tile work.
Retractable Blades Versus Fixed Blades
From a safety standpoint, a retractable utility knife is a safer option than a non-retractable design. In addition to being safer, a utility knife with retractable blade allows you to adjust the cutting depths of the blade, based on the material you're cutting. Most retractable blades are simple to open, and feature a thumb-operated sliding mechanism that allows the blade to slide in and out.
If you’re cutting heavy-duty materials, a fixed blade may be better suited for the job. Because of their design, utility knives with fixed blades offer more stability, lock into place, and won’t bend under pressure.
Tool Attachments
Some utility knives are equipped with additional tools, offering more utility for projects on the job and around the house. Examples include integrated bit drivers in multiple styles including Phillips head options and slotted bits. A utility knife that serves as a knife and screwdriver is a practical tool addition for any tool box. Some utility knives are also equipped with wire and string cutters and prying tools. If you're looking for a utility knife that can handle multiple tasks, look for ones designed with integrated tools.
Replaceable Blades
Utility knives with replaceable blades make it easy to always have a sharp blade on hand. Like any knife, utility knives are prone to dullness over time. But many utility knives come with additional blades that allow you to get a sharp cut on any surface. Some replaceable blades can even be stored on the utility knife, so you won't have to search for a new blade when you need one.
For ease of use, look for utility knives with a spring-loaded blade magazine that automatically loads fresh blades with a flick of a switch. These magazines can store up to 15 blades per magazine, depending on the make and model of the knife.
Utility Knife Safety
Utility knives are incredibly sharp and should be used with extreme caution. Always follow these best practices when using a box cutter or utility knife.
- When not in use, ensure that the blade is covered. If you're using a knife with a retractable blade, make sure the blade is lowered and locked into place. If using a fixed blade knife, use the included cover to keep the blade protected.
- Generally, when using a utility knife, it’s recommended to wear eye protection.
- If possible, choose a utility knife with non-slip rubber handles. These handles offer better grip, eliminating accidents.