Supergrit Abrasives

A.O. 1" THICK 3" X 5" (FOUR SIDES)

A.O. 1" THICK 3" X 5" (FOUR SIDES) - Main image
$0.74 $1.1 In stock

This A.O. (aluminum oxide) abrasive block measures 3 inches by 5 inches and is 1 inch thick, featuring four usable sides for extended life. It is available in 120 grit, suitable for sharpening and finishing tasks. Choose from a single block or a pack of 10.

  • Aluminum oxide construction for durable cutting action.
  • 1-inch thick block with four sides for versatile use.
  • 3 x 5 inch size fits comfortably in hand.
  • 120 grit for fine sharpening and finishing.
  • Available in single piece or pack of 10.
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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 (4.6 / 5 · 5 reviews)

Eva R. ★★★★★

I was pleasantly surprised how quickly this four-sided block cleans up a dull edge—the 1-inch thickness gives you plenty to grip while working. I’ve used it on several knives so far, and the 120 grit removes material fast without clogging up.

Samuel ★★★★★

I’ve been using this 3x5 aluminum oxide block for a few weeks now, and the 1-inch thickness gives a solid, comfortable grip while sharpening. The four usable sides mean I’m not constantly flipping to find a fresh surface. It leaves a smooth, consistent edge on my kitchen knives without much effort.

Brian O. ★★★★★

The 120 grit cuts fast but leaves a surprisingly smooth finish on my kitchen knives. Having four sides means I only flip it to a fresh surface instead of reaching for a new stone.