Hand Tools — FAQ
What's the difference between a utility knife and box cutter?
The terms are interchangeable. Utility knife typically describes heavier-duty metal knives, while box cutter often refers to lighter plastic models. Both use standard trapezoid blades.
How often should I change the blade?
Change blades when you notice tearing instead of clean cuts—typically every 100-200 feet of cardboard. Dull blades require more force, increasing accident risk.
Are retractable blades safer than fixed blades?
Yes. Retractable knives let you expose only the blade length needed, reducing injury risk. Models with auto-retract add protection but can feel less convenient.
Can I use any brand of replacement blade?
Standard utility blades fit most knives, but thickness varies slightly. Premium brands like WORKPRO and Klein maintain tighter tolerances for smoother operation.
What's the best utility knife for cutting heavy cardboard?
The WORKPRO Premium excels here—its all-metal body won't flex under pressure, and the five-position lock lets you extend more blade for thick material.
How do I maintain my budget utility knife?
Wipe clean after use, lubricate the slide mechanism monthly with light oil, and store spare blades dry. Avoid moisture that causes rust on the blade carrier.