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Aesthetically, Black Steel rivals the exotic look of Damascus steel or titanium, with a sub-metallic lustre that reveals a glimmer of the steel beneath the surface. It’s applied using a technology called magnetron sputtering, usually reserved for luxury watches and military-grade tools, where nano layers of tungsten carbide carbon are deposited onto the stainless steel surface.

The resulting 3um thick finish has a Vickers hardness of 1200 VPN, 9x harder than stainless steel and 3.5x harder than titanium. Our Black Steel finish also has incredibly low friction (<0.1) due to the carbon added, ensuring the sliding surfaces of the mechanism are satisfyingly smooth. As a result, our Black Steel Collection will be scratch resistant to virtually anything you will put in your pocket and the parts should never need to be maintained, let alone replaced.