“A versatile 23 cm diamond rod with unusually broad hardness compatibility — practical, fast and easy to understand.”
Lucy · Head of Curation
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Free UK delivery over £75
Victorinox 7.8313 is a 23 cm oval, diamond-coated sharpening steel designed to put useful bite back into plain edges quickly. Victorinox states it is suitable for knives up to 23 cm and up to 65 HRC, so it has unusually broad relevance across both workhorse and harder kitchen blades. The oval shaft provides a generous contact surface while the diamond coating makes it more abrasive than a standard honing steel.
23 cm; oval; diamond-coated; Victorinox states suitability for knives up to 23 cm and up to 65 HRC.
in-stock branded diamond steel at an accessible price.
Not ideal for
Consider something else if
Choose a conventional steel for simple realignment or a stone for damaged edges and precise bevel work.
From the counter
Lucy's Verdict
A versatile 23 cm diamond rod with unusually broad hardness compatibility — practical, fast and easy to understand.
Lucy · Head of Curation
Why we chose it
We chose it because it can serve customers beyond the Victorinox ecosystem. The published up-to-65-HRC guidance gives us a much clearer compatibility story than most generic sharpening steels.
Who it's best for
Buy it if you want a quick abrasive refresh for plain-edge knives up to 23 cm and within Victorinox’s stated hardness guidance.
Why Lucy recommends it
23 cm; oval; diamond-coated; Victorinox states suitability for knives up to 23 cm and up to 65 HRC.
Follow the manufacturer’s cleaning, storage and compatibility guidance. For sharpening products, match the tool to the knife’s edge angle, steel hardness and blade type before use.
Free UK delivery On orders over £75. Blades ship in protective packaging — never loose in a box.
Warranty check Ask Lucy before you buy — we'll tell you honestly if this isn't the one.
If you're torn
Still deciding?
If a heavier German blade feels like the safer choice, read this before you decide.