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NEIKO 11142A 10 Pack Zirconia Flap Discs 4-1/2" for Angle Grinder, 40 Grit T29 Grinding Wheel, 7/8" Arbor, 4.5 Inch for Wood & Metal Sanding

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Availability: Only 3 left in stock, order soon!
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Arrives Saturday, Mar 21
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Style: Type 29


Pattern Name: 40 Grit


Size: Zirconia


Features

  • PREMIUM QUALITY: These angled flap discs, also known as cut off wheels 4 1/2 inch, are constructed with industrial grade premium zirconia abrasive for strength, durability, and extended disc life as it holds up to high temperatures and pressure.
  • STOCK REMOVAL: Each angle grinder sanding disc is made with coarse 40 grit zirconia alumina, making this abrasive flap disc ideal for aggressive grinding on hard to grind materials like metal, rubber, plastic, fiberglass, and wood.
  • ANGLED T29: Beveled Type 29 discs are best used at an angle and are effective for edge shaping, deburring, grinding contours, and radius grinding on steel, sheet metal, welding, machining, heavy duty equipment and industrial maintenance.
  • FIBERGLASS BACKING PLATE: The resin fiber construction complemented by the fiberglass backing plate absorbs vibrations without smearing and helps prevent contaminating the workpiece during usage.
  • SPECIFICATIONS: Each disc measures at a 4-1/2-inch diameter with a 7/8-inch arbor size, making it compatible with most angle grinders with a speed of up to 13,300 RPM. Designed for grinding, blending, sanding, and finishing on a wide range of materials.

Description

NEIKO 11142A Premium Zirconia Flap Discs can operate up to a maximum speed of 13,300 RPM. Each 40-grit flap disc in this 10-piece set is outfitted with a 7/8-inch arbor. These abrasive flap discs can be used on most angle grinders and on the toughest metal grinding applications.

Grit Material: Zirconia Alumina


Product Dimensions: 4.5"L x 4.5"W


Brand: NEIKO


Compatible Devices: Angle Grinder


Grit Type: Coarse


Product Dimensions ‏ : ‎ 4.5 x 4.5 x 0.1 inches; 0.01 ounces


Item model number ‏ : ‎ 11142A


Date First Available ‏ : ‎ July 27, 2016


Manufacturer ‏ : ‎ Neiko


Best Sellers Rank: #1,819 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Flap Discs


#1 in Flap Discs:


Customer Reviews: 4.7 4.7 out of 5 stars 6,806 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Mar 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Sharpens blades with ease
Style: Type 29 Pattern Name: 80 Grit Size: Zirconia
I purchased these to sharpen my mower blades and it does this with ease!
Reviewed in the United States on November 14, 2025 by RJ Indiana

  • Worked Great
Style: Zirconia Pattern Name: Type 29 Size: 60 Grit
Good price
Reviewed in the United States on November 17, 2025 by Kim M. Johnson

  • Nice flap discs
Style: Type 27 Pattern Name: 80 Grit Size: Zirconia
Sure there are better quality flap discs out there but the price these are hard to beat.
Reviewed in the United States on October 18, 2025 by Steven & Deborah Ferguson

  • Flap disk.
Style: Zirconia Pattern Name: Type 29 Size: 60 Grit
I will never use a hard grinding disk for sharpening my lawn mower blades again. After using the flap disk. Super good product.
Reviewed in the United States on October 25, 2025 by James d.

  • Inexpensive
Style: Type 29 Pattern Name: 80 Grit Size: Zirconia
They work okay. Make sure you order the right size for your grinder. Once I got them on they did fine.
Reviewed in the United States on October 14, 2025 by Maggie

  • Flap disc
Style: Type 29 Pattern Name: 40 Grit Size: Zirconia
These flap discs are excellent quality. They cut smoothly, last longer than the cheaper discs I’ve used, and don’t wear down quickly even on tougher metals. Great value for the price, and they fit my grinder perfectly. Highly recommend for anyone doing metal fabrication or welding work.
Reviewed in the United States on September 7, 2025 by jeremy mcclure

  • nice
Style: Type 27 Pattern Name: 60 Grit Size: Zirconia
great
Reviewed in the United States on September 27, 2025 by Kimani Benoit

  • Solid Pad
Style: Type 29 Pattern Name: 40 Grit Size: Zirconia
I recently purchased the NEIKO 11142A Zirconia Flap Discs, and I have to say, they exceeded my expectations. The quality of these discs is impressive—they're durable and hold up well under high pressure and heat. I used them for grinding and sanding metal, and they performed flawlessly, removing material quickly and leaving a smooth finish. The angled Type 29 design is particularly useful for shaping edges and grinding contours. It feels like the discs were designed with precision in mind. The fiberglass backing plate is another great feature—it absorbs vibrations and prevents smearing, which makes the whole process smoother and more efficient. Overall, these flap discs are a fantastic value for the price. If you're looking for reliable and high-performing discs for your angle grinder, I highly recommend giving these a try. ... show more
Reviewed in the United States on April 28, 2025 by Paul

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