Ultra Sharp Box Cutter - The utility knife blade is made of SK-5 high carbon steel, trapezoid-shaped blade. And the blade is thicker than the normal utility knife, the heavy duty box cutter are more sharp and durable.
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Premium Utility Knife Replace The Blades Easily - The shell of box cutter knife is made of aluminum alloy, comfortable to hold. As long as you use a screwdriver, you can replace the razor blades. When replacing the blade, youd better wear gloves.
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Box Cutters Retractable - Press and hold the slider to change the blade length. Different blade lengths help you cut different materials, easy and convenient.
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