Search  for anything...

WORKPRO 20-Pack Flap Discs, 4-1/2-inch, Arbor Size 7/8-inch, T29 Zirconia Abrasive Grinding Wheel and Flap Sanding Disc, Includes 40/60/80/120 Grits

  • Based on 2,202 reviews
Condition: New
Checking for the best price...
$25.64 Why this price?
Save $2.35 was $27.99

Buy Now, Pay Later


As low as $6 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Apr 30
Order within 15 hours and 2 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: Multi Grit


Unit Count: 20.0


Features

  • Meet All You Need: This premium flap disc set includes 10 pieces of 40 grit, 5 pieces of 60 grit, 3 pieces of 80 grit and 2 pieces of 120 grit, which can be used for universal applications, ranging from metal or woodworking, concrete grinding or finishing, stone smoothing or finishing, to rust removal and more - perfectly offers all you need for your projects
  • Extreme Durability and Value: Made of hard zirconia alumina material which lasts longer than standard aluminum oxide abrasive material, built for a more robust and economical grinding wheel
  • T29 Flap Discs with Fiberglass Backing Plate: T29 flap disc features angled flaps, which can be used for edge-working or contoured applications. These discs are also designed with a greater surface area than flat type for stock removal on horizontal surfaces. Fiberglass creates a strong bond with adhesives and does not contaminate the working surface. Fiberglass backing plate can effectively absorb vibration and bring more stable & efficient grinding
  • Great Performance: Each 4.5" x 7/8-Inch arbor size flap disc is compatible with angle grinders operatable of up to 13,000 RPM. Our flap disc set make it ideal for high performance blending and stock removal on metals non-ferrous materials, fiberglass, plastics, woods and other uneven surfaces.

Grit Material: Zirconia Alumina


Product Dimensions: 4.5"L x 4.5"W


Brand: WORKPRO


Compatible Devices: Angle Grinder


Grit Type: Coarse


Material Type: Ceramic


Grit Material Type: Zirconia Alumina


Grit Type: Coarse


Grit Number: 120


Construction Type: Grinding


Brand Name: WORKPRO


Industry Standard Identifier:


Model: W124132


UPC: 820909753230


Manufacturer: HANZGHOU GREATSTAR INDUSTRIAL CO.LTD


Unit Count: 20.0 Count


Compatible Devices: Angle Grinder


Compatible Material: Stainless Steel


Maximum Rotational Speed: 13000 RPM


Item Dimensions: 4.5 x 0.88 x 0.04 inches


Item Dimensions L x W: 4.5"L x 4.5"W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works good and great value
Style: Multi Grit Unit Count: 20.0
Item just as described
Reviewed in the United States on April 3, 2026 by stanford hanks

  • Job site quality
Style: Multi Grit Unit Count: 20.0
These hold up well and hasn't blown apart on me yet. I will continue to purchase and wouldn't think twice about using on a job site.
Reviewed in the United States on January 20, 2026 by Nicholas Knight

  • They seem to work well, and last quite a while.
Style: Multi Grit Unit Count: 20.0
I've been building a welding cart, and since I'm just getting back into TIG welding after 30+ years, I have a lot of welds to grind off. I've used the slop out of the disk and it's still going strong, so I'm pleased with the longevity. After the welding cart I'm going to start welding on a stripper pole I'm making for my rotund great aunt. I need to make it out of super thick steel pipe because she keeps bending the store-bought ones when she does that flying jump mount from across the room. At 315 pounds, that women can tilt the planet when she hits, so I have to lay in a lot of welds. These flap discs will be great for that. Wish me luck, and the poor pole too. ... show more
Reviewed in the United States on October 25, 2023 by Just Me

  • Great Buy
Style: Multi Grit Unit Count: 10.0
These disc were a great buy. Love the way they sand and are very easy to use. I use them to carve out and sand on Birdhouses and they are perfect.
Reviewed in the United States on March 24, 2026 by Tim Parsons

  • Good selection of sizes.
Style: Multi Grit Unit Count: 10.0
Most useful tool
Reviewed in the United States on March 21, 2026 by Walton Robinson

  • Genial
Style: Multi Grit Unit Count: 10.0
Herramientas de muy Buena Calidad y duraderas al mejor precio
Reviewed in the United States on March 11, 2026 by Fer

  • Great grinding disks
Style: Multi Grit Unit Count: 10.0
Work great and seem to be of good quality
Reviewed in the United States on December 24, 2025 by Cody

  • Great....At First
Style: Multi Grit Unit Count: 10.0
At first it works better than expected. However, I noticed when it started to get hot, it was pretty much too late, it just started to burn. I was hoping it would of lasted a little bit longer but for the price, not bad. Just take your time and constantly lift it off your work to reset.
Reviewed in the United States on April 7, 2026 by Sierra 117

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...