Best Safety Knife 2025: Our Top Picks

If you’re looking for the best safety knife on the market today, then chances are you need a Slice® safety knife.

Why Slice®? Well, there is an option to suit every workplace cutting activity, and these award-winning safety knives actually make cutting tasks easier, safer and more comfortable.

So, it is no wonder Slice® safety knives are the most popular safety knives we stock in our range.

About the Slice® Safety Knife: Safety first

Designed with safety in mind, Slice® safety knives have innovative ceramic blades that cut with their hardness rather than their sharpness, as well as a variety of retraction mechanism options balancing effective performance with limiting blade exposure.

Since coming to market, they have more than proven their ability to reduce hand injuries in the workplace compared to traditional safety knives.

What makes a safety knife safe? Discover the science behind the Slice® safety knife.
Ceramic blades: Your questions answered.

About the Slice® Safety Knife: Ergonomic design

Slice® safety knives are also ergonomic tools. This means they are designed in a way that takes account of how the human body works and how it interacts with its environment.

Ergonomic tools allow people to work more efficiently and productively, with more control, while also reducing fatigue, discomfort and the risk of injury. They enable the user to engage in repetitive motions without fear of developing the likes of a repetitive strain injury. Ergonomic tools:

• Reduce muscle effort
• Encourage correct wrist alignment
• Allow healthy thumb positioning
• Provide optimum grasping force

Some of the biggest innovations in ergonomic design evident in the Slice® safety knife range include:

•   J-hook handle – This unusually-shaped handle has won awards for its design, having been proven to lower forearm muscle effort by more than 13 per cent. This is a feature of the Slice® Box Cutter Safety Knife.

•   Ergo-Pull™ – This innovation sees the safety knife blade engaged by pulling the mechanism backwards with the thumb. By eliminating the forward positioning of the thumb and subsequent inward rotation of the wrist required by traditional push forward blade engagement mechanisms, it offers workers a safer, more secure grip on the tool while simultaneously reducing the upper arm and forearm muscle effort required to execute both horizontal and upright cutting motions. Ergo-Pull™ is a feature of the smart-retracting Slice® Utility Safety Knife. 

The Slice® Safety Knife: Our top picks

Ready to find out more? Here’s our pick of the best of the current Slice® range:
 

Slice® Utility Safety Knife

This good, all-round-easy-to-use safety knife is available with a manual release or auto-retractable blade. It comes with five potential blade positions, including the option of a longer blade for thicker cuts, and a durable, glass-filled nylon handle made in an ambidextrous design for convenience. The auto-retractable bladed knife is also available with a textured finish metal handle for those who prefer the look and feel of a traditional ‘Stanley’ knife, which comes with a blade garage in which additional blades may be stored.

View the manual knife
View the auto-retractable knife
View the metal handle knife

Slice® Industrial Safety Knife

This safety knife has an extra-long blade with a cutting depth of up to 7.8cm (3 inches), making it ideal for cutting through thick materials like foam. The manual retracting blade has four cutting positions, while the durable reinforced nylon handle is made in an ambidextrous design.

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Slice® Precision Safety Knife

With an innovative soft, angled finger hole optimised for comfort and steadiness, a no-roll design, and a knurled grip allowing complete control, this safety knife makes cutting intricate shapes easier, safer and more comfortable. Lightweight, portable and ambidextrous, it comes with straight edge and rounded tip blades as well as a safety cap for additional protection.

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Slice® Pen Cutter Safety Knife

Available with a manual release or auto-retractable blade, this versatile safety knife in the familiar sleek shape of a pen is comfortable to hold and easy to carry and store. Its durable glass-filled nylon handle is made in an ambidextrous design and features a lanyard hole, while a rubberised slider allows the blade to be comfortably located in one of three different positions.

View the manual knife
View the auto-retractable knife

Slice® Craft Safety Knife

With its no-roll, ambidextrous design, textured grip and weighted handle, this craft safety knife is the perfect tool for precision cutting, offering comfort and control across a range of applications. It comes with straight edge and rounded tip blades as well as a safety cap for additional protection.

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Slice® Safety Cutter

Safe, convenient and versatile, this ergonomically designed, mouse-shaped safety knife has won awards for innovation. Its rubberised non-slip finish and minimally exposed micro-ceramic blade make it an easy-to-use tool for opening, trimming and cutting different materials. Powerful yet portable, it is small enough to fit into a pocket and safe enough to be kept in one, and even comes with a built-in magnet and keyring hole for ease of storage.

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Slice® Mini Cutter Safety Knife

The perfect size and weight for using on-the-go, this lightweight mini safety knife features a textured rubberised slide controlling a miniature auto-retractable blade. Suitable for left and right handers alike, it also comes with a built-in magnet and integrated lanyard hole to make carrying and storing simple.

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Slice® Box Cutter Safety Knife

Available with a manual or auto-retractable blade, this award-winning safety knife is ergonomically designed for comfortable cutting. Its curved, J-hook shaped handle wraps comfortably around the hand to shield fingers from staples and other hazards, and to minimise wrist strain.

View the manual knife
View the auto-retractable knife

More information on the Slice® range can be found in our dedicated online shop, or you can contact us to order sample knives for trial at sales@isb-group.com.