306CBN CBN Benchstone

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The 306CBN CBN Benchstone is a medium-sized portable sharpening stone suitable for freehand sharpening knives and many other edged tools.

Appearance in catalogs

The 306CBN CBN Benchstone appeared in the following catalogs:


History, mentionings from the forums etc.

Information from the Spyderco catalog on the web

306CBN CBN Benchstone

Cubic Boron Nitride (CBN) is a high-tech superabrasive that is second in hardness only to diamond. Offering greater abrasion resistance and thermal conductivity than conventional abrasives like silicon carbide and aluminum oxide, CBN removes steel quickly and efficiently. Spyderco's new 3x8 benchstone combines the many advantages of CBN with a classic flatstone format to supercharge traditional sharpening technique.

The broad, perfectly flat carbon steel embryo of this stone is coated with fast-cutting 400-mesh CBN on one side and finer 800-mesh CBN on the other. Ideal for putting an edge on knives, this stone is also the perfect choice for sharpening wood chisels, plane irons, and similar tools and comes complete with a highquality suede protective case.[1]


SKU From/To MSRP Note
306CBN 2020 - $141.00 (2022) size: 3" X 8"

Most collectible variation

Any 306UF Benchstone Ultra Fine in good condition with all of its parts and accessories and original packaging, would be considered a collectible.

Questions regarding collecting the 306UF

Some interesting questions we are looking for an answer to:

Questions with an answer:


  1. The 306CBN CBN Benchstone in Spyderco's online catalog


The 306CBN CBN Benchstone.