Knife Blog — Steel, Blade & Maker Guides

How to Close a Pocket Knife Safely

24.10.2026

Before touching the lock, keep your fingers out of the blade’s closing path, point the edge away from you/others, and establish a secure grip. If you’re unsure, close the knife over a stable surface and take it slow. Confirm the blade is fully seated when closed.

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Macuahuitl: The Complete Guide to the Aztec Obsidian Sword

23.10.2026

The macuahuitl was one of the most distinctive weapons of pre-Columbian Mesoamerica — a flat wooden club edged with razor-sharp obsidian blades, wielded by elite Aztec (Mexica) warriors in the Late Post-Classic period (c. 1200–1521 CE).

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Glock Knife: Features, History, and Uses

23.10.2026

Glock knives are Austrian-designed fixed-blade field knives originally developed for military use. Glock's current field-knife lineup consists of the FM78, with a plain spine, and the FM81, with saw teeth on the spine. Both have a 6.5-inch (165 mm) blade, an 11.4-inch (290 mm) overall length, a polymer grip, and a molded polymer sheath.

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What Is the Sharpest Knife in the World?

23.10.2026

An obsidian scalpel is often described as the sharpest knife in the world, with a cutting edge reported to be about 3 nanometers (nm) wide. But there is no universally recognized world-record knife. Published microscopy has measured edge radii as small as 3.2–4.4 nm for diamond knives and 3.4–4.3 nm for laboratory glass knives.

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Knife Steel Chart: Compare Edge Retention, Toughness and Corrosion Resistance

23.10.2026

A knife steel chart is most useful when it compares the properties that change how a blade behaves in real use: edge retention, toughness, corrosion resistance, ease of sharpening, and realistic working hardness.

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What Is a Switchblade?

22.10.2026

A switchblade is an automatic knife whose blade opens when a button, lever, or switch releases a spring-loaded mechanism. Unlike a manual folding knife, it does not require the user to push the blade through its opening arc.

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The Ultimate Barlow Knife Guide — Everything Collectors and Everyday Carriers Need to Know

22.10.2026

A Barlow knife is a traditional slip-joint pocket-knife distinguished by its elongated teardrop handle, oversized front bolster, and one-or-two-blade configuration that balances strength, slimness, and affordability.

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What Is a Gravity Knife

22.10.2026

A gravity knife is a knife whose blade deploys under gravity or inertia after the user releases a retaining mechanism. In the traditional design, the blade slides out of the front of the handle without a spring firing it. Some modern designs let a released blade pivot instead.

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Knife Locks: A Comprehensive Guide

22.10.2026

A folding knife lock holds the blade open when you cut. The familiar designs—liner lock, frame lock, back lock, crossbar lock, button lock, and compression lock—achieve that job in different ways.

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