| Brand | Unbranded |
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Check the listing for details. Spyderco SP204MF Tri-Angle Sharpmaker. Condition: New. Listed at 146.00 USD. With a hardness of 9.22 on the Mohs scale (diamond is 10), it is suitable for a variety of tool steels, including high-speed steel, D2, 440C, ATS-34, 154CM, and S30V. By following the instructions, you can sharpen only the edge, avoiding unnecessary scratches on the sides.