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The DMT Diafold Magna-Guide is a folding double-sided diamond sharpener with an extra-fine grit, weighing 0.38 lbs. The Magna-Guide adds a magnetic angle guide that holds a consistent sharpening angle on knives and tools, and the folding plastic handle protects the diamond surface in a pocket or toolbox. At $32.25 at eBay as of November 6, 2026, it sits at the low end of its recent range across the three stores that carry it new.
In stock
Availability unknownSold by nightgalaxy (99.7% positive, 209,100 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknownSold by natepost1 (99.9% positive, 5,700 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Out of stock
Also available at
Lowest price we've seen: $40.74 on Nov 6 at Hand-Tools.com. Tracked across 3 stores since Nov 6.
Owners of DMT diamond sharpeners generally rate the Diafold line highly for fast cutting and durability, and the Magna-Guide is liked for adding angle control to a folding stone. Complaints center on the small sharpening surface and the extra-fine grit being too fine for repair work.