3 X 79 Inch Premium Zirconia Sanding Belts, 4 Pack

$35.89 ~~$57.88~~ In stock

3x79" Industrial Grade Zirconia Grinding Belts

Our industrial grade zirconia sanding belts are a great choice for heavy duty grinding applications. Zirconia’s self-sharpening abrasive grains extend belt life up to 2.5 times longer than aluminum oxide. Zirconia fractures during use, continuously revealing sharp abrasive grain. Its durability makes it a great choice for knife makers, blacksmiths, welders, or anyone working with metals. While it will not match the longevity of ceramic abrasives, zirconia is a cost-effective alternative. Wet or dry applications. Hand built in the USA.

Available Grits: 24, 36, 40, 50, 60, 80, 100, 120

Single Grit Pack Quantity: 6

Weight: Y-wgt

Backing Material: Polyester

Waterproof: Yes

Applications: Stock removal, profiling, bevel work, sharpening, grinding welds, shaping, cutting, and blending ferrous / non-ferrous metals (steel, stainless steel, alloys, hardened steel, aluminum, copper, titanium, nickel, etc.). Also appropriate for very dense and hard woods.

Closed Coat: 100% abrasive grain coverage

Joint: Bi-directional tape joint allows belt to run in EITHER direction (disregard arrows)

Grinding Aid: Anti-loading and heat reducing stearate coating for cooler grinding

Bonding: Resin over resin

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Julian U. ★★★★★ Oct 22, 2026

Picked up these for my angle grinder and the self-sharpening grain really made short work of stripping old paint off metal furniture. Ran several pieces without the belt wearing down noticeably.

John ★★★★★ Oct 21, 2026

These belts chewed through a thick weld bead on my tractor bucket like it was butter. The zirconia grains stayed sharp for way longer than my usual aluminum oxide belts, saving me a trip to the hardware store.

Sofia H. ★★★★★ Oct 20, 2026

Ran them hard on some stubborn steel for a full afternoon and they still cut clean without glazing over, which is exactly what I needed from the zirconia grains. The 3x79 size fit my sander perfectly and the four belts in the pack make the price feel fair for the abuse they take.