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A Serrated Utility Knife That’s Safe, Durable, and Versatile

One of our serrated utility knife blades, the Slice® 10523, and its features.

Utility knives are meant to be your go-to tool for cutting a wide variety of materials, and, eventually, some of those materials will require a serrated utility knife. What you don’t need is a tool that leaves you open to a high risk of lacerations and punctures. Or one with blades that dull too quickly. Slice® has you covered on both accounts.

Slice: Always Safe, Always Durable

Slice blades are made of extremely hard 100 percent zirconium oxide, an advanced ceramic. We apply our patent-pending finger-friendly® design to all of our blades, making them sharp enough to be effective, but safe enough to touch. In fact, Slice makes the only true safety blade.

Metal blade manufacturers design their blades thin and overly sharp. This sharpness doesn’t make them more effective or safer, as many consumers mistakenly believe. That overly sharp design is dangerous: it puts you, the user, at a high risk for lacerations. This short video demonstrates how much safer the Slice blade is compared to traditional blades:

So why make an overly sharp blade? The traditional design is used because metal—the traditional material—is a relatively soft material; it dulls quickly. This is especially true if you’re cutting tough or abrasive materials. Manufacturers ship an overly sharp blade to extend its working lifespan. This dangerous workaround sacrifices safety for longevity.

A very dull blade is also dangerous because the user must put more force into the cut. This increases the risk of the blade slipping and the user losing control of the tool.

Slice keeps its effective sharpness for a long time because of the hardness of zirconium oxide and how we grind our blade edge. Our blades have been third-party tested to last up to 11 times longer than metal blades.

Manufacturers of traditional ceramic blades mimic the thin, dangerously sharp design popularized by metal blade manufacturers, so no other ceramic blade can claim to be finger-friendly, like Slice. Also, not all ceramic blades feature the same material composition—that is, they aren’t all made from 100 percent zirconium oxide—so their performance may vary.

What Do You Use a Serrated Utility Knife For?

Serrated blades are necessary for jobs that require a sawing motion. This often occurs when you need to cut materials that are tough, thick, dense, or fibrous, such as:

  • Fibreglass insulation
  • Dense foam
  • Pressed fibreglass
  • Anything that’s difficult to cut with a straight blade

Serrated edges do leave a rough edge, so are not good if you’re looking for smooth, clean, detailed cuts. The majority of cutting jobs don’t require a serrated blade, but when you need one, a plain edge won’t do.

This is where replaceable-blade utility knives with compatible serrated and straight-edge blades are an excellent choice: when you need a serrated edge, you’ve got it. When you need a plain edge blade, switch to that. This puts an end to the serrated-vs-plain-edge-knives debate: you can have both in one tool.

Slice Serrated-Blade Utility Knives

Slice makes two models of utility knives that are compatible with our serrated safety blades and our straight blades: our long-blade industrial knives and our metal-handle utility knives. Both models are offered in two handle styles: manual retraction and auto-retraction.

For each of these tools, Slice offers three types of blades: a serrated-edge blade, a pointed-tip straight blade, and a rounded-tip straight blade. All handles ship with a rounded-tip straight blade.

Slice Metal-Handle Utility Knives

The metal-handle utility knives offer a maximum blade depth of 1 inch. Their ambidextrous design allows anyone—right- or left-handed—to grab the tool and start cutting. As with standard utility knives, the Slice knives offer automatic spring-loaded retraction (a favorite of safety managers) or manual retraction. No extra tools are needed to change the blade in our metal-handle knives.

Slice Industrial Knives

Our industrial knives were designed especially for manufacturers who work with dense foam and need extra-long blades. The compatible industrial blades, the 10538 Rounded-Tip Blade, the 10539 Pointed-Tip Blade, and the 10540 Serrated-Edge Blade, are 4 inches long. Once installed in the knives, they offer a cutting depth of up to 3 inches. Again, no extra tools are needed to remove or replace the blades.

To adjust the industrial knives for right- or left-handed use, simply flip the blade orientation, as this graphic shows.

Graphic demonstrating how Slice® industrial knives, including the serrated utility knife option, can be used by lefties and righties.

Safety Is Peace of Mind

Safety is a critical feature for inherently dangerous tools like cutters. When you stay safe, you eliminate the pain and cost of getting hurt, and you have greater peace of mind.

Slice’s number one priority is always safety. The quality and durability of our tools means they’re effective over the long haul. Now it’s up to you to put them to work. What Slice serrated utility knife will you choose, and how will you use it?

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