Supergrit Abrasives

12" X 18" PSA LAPPING SHEET 3M IMPERIAL DIAMOND 45 MICRON P400 GRIT

12" X 18" PSA LAPPING SHEET 3M IMPERIAL DIAMOND 45 MICRON P400 GRIT - Main image
$5.55 $7.5 In stock

This 12" X 18" PSA lapping sheet from 3M Imperial Diamond is offered in a 45 Micron P400 grit. It is a pressure-sensitive adhesive (PSA) sheet, designed for lapping applications. Choose from a single sheet or a roll of 12 pieces.

  • Dimensions: 12" X 18"
  • Grit: 45 Micron P400
  • Type: PSA lapping sheet
  • Brand: 3M Imperial Diamond
  • Quantity options: Single or Roll of 12pc
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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 (4.8 / 5 · 5 reviews)

Stella ★★★★★

Used this 45 micron sheet to polish the face of a small carbide scraper and the PSA backing held perfectly flat on my granite block. The 12x18 size gave me plenty of material to cut custom strips for different tools.

Ellie Z. ★★★★★

Cutting gasket material from this sheet was surprisingly clean—the diamond grit bites evenly without tearing. The 45 micron finish is perfect for final surface prep before assembly.

Edward ★★★★★

Needed a consistent grit for a knife sharpening project and this 45 micron sheet cuts evenly without loading up. The 12x18 size gives plenty of room to work with and the PSA backing holds perfectly flat on my granite block.