Supergrit Abrasives

4 1/2"X 5/8 SMOOTH BORE PREMIUM BLACK RUBBER & ALUMINUM TURBO BACKING PLATE (R425)

4 1/2"X 5/8 SMOOTH BORE PREMIUM BLACK RUBBER & ALUMINUM TURBO BACKING PLATE - Main image
$12.96 $18 In stock

The 4 1/2" x 5/8 smooth bore premium black rubber and aluminum turbo backing plate (R425) is offered by Supergrit Abrasives. It is identified by the model code R425 and the SKU code 4.5TURBO5/8SB.

  • Size: 4 1/2 inches with a 5/8 smooth bore
  • Construction: black rubber and aluminum
  • Style: turbo backing plate
  • Model: R425
  • SKU: 4.5TURBO5/8SB
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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 (4.8 / 5 · 5 reviews)

Ryan F. ★★★★★

The 5/8" arbor fits my grinder perfectly, no adapters needed, and the rubber face grips the disc firmly with zero wobble. I've put it through a few heavy sessions already and the aluminum hub is holding up great without any heat buildup.

Claire T. ★★★★★

The aluminum core keeps it light enough that my grinder doesn’t feel unbalanced, and the rubber face grips the disc without slipping mid-job. Swapped out my old plate in minutes since the 5/8 smooth bore fit perfectly.

Stella ★★★★★

Finally got this to replace a worn-out backing plate, and the aluminum core keeps it from flexing under pressure, really smooths out the grinding. The 5/8 thread fit my grinder right out of the box.