--- product_id: 112319618 title: "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" brand: "workpro" price: "฿3527" currency: THB in_stock: true reviews_count: 8 category: "Workpro" url: https://www.desertcart.co.th/products/112319618-workpro-20-pack-flap-discs-4-1-2-inch-arbor store_origin: TH region: Thailand --- # Up to 13,000 RPM high-speed compatibility T29 zirconia abrasive for extreme durability 4.5-inch diameter for versatile use 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 **Brand:** workpro **Price:** ฿3527 **Availability:** ✅ In Stock ## Summary > ⚡ Grind smarter, last longer — the WORKPRO edge you can’t afford to miss! ## Quick Answers - **What is this?** 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 by workpro - **How much does it cost?** ฿3527 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/112319618-workpro-20-pack-flap-discs-4-1-2-inch-arbor) ## Best For - workpro enthusiasts ## Why This Product - Trusted workpro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Outlast:** Premium zirconia alumina material delivers longer life than standard abrasives, saving you time and money. - • **High-Speed Powerhouse:** Compatible with angle grinders up to 13,000 RPM for fast, efficient stock removal on metals, wood, and more. - • **Pro-Grade Versatility:** Trusted by pros and DIYers alike for metal, stone, fiberglass, and rust removal — all in one premium set. - • **All-in-One Grit Variety:** 20 discs spanning 40 to 120 grit cover every project from rough grinding to fine finishing. - • **Precision Edge & Contour Work:** T29 angled flap design with fiberglass backing ensures smooth, vibration-free grinding on edges and curves. ## Overview The WORKPRO 20-Pack Flap Discs feature 4.5-inch T29 zirconia abrasive wheels with a 7/8-inch arbor, designed for high-speed grinders up to 13,000 RPM. This set includes multiple grit options (40, 60, 80, 120) for versatile applications from heavy stock removal to fine finishing. Constructed with durable zirconia alumina and a vibration-absorbing fiberglass backing plate, these discs deliver professional-grade performance on metal, wood, stone, and more. ## Description Buy 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: Flap Discs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great Price for the Job - Work great, last a while cleaning up welds. Review: Great grinding disks - Work great and seem to be of good quality ## Features - Meet All Your Needs: 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. It 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: The 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. The 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 makes it ideal for high-performance blending and stock removal on metals, non-ferrous materials, fiberglass, plastics, wood, and other uneven surfaces - Premium Flap Disc Set: A top-tier flap disc set with precision and quality in mind, perfect for professionals and DIY enthusiasts ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07M6XN561 | | Best Sellers Rank | #6,879 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Flap Discs | | Brand | WORKPRO | | Brand Name | WORKPRO | | Compatible Devices | Angle Grinder | | Compatible Material | Fiberglass, Stone | | Construction Type | Grinding | | Customer Reviews | 4.6 out of 5 stars 2,110 Reviews | | Grit Material | Aluminum Oxide, Zirconia, Zirconia Alumina | | Grit Material Type | Aluminum Oxide, Zirconia, Zirconia Alumina | | Grit Number | 120 | | Grit Type | Multi Grit | | Industry Standard Identifier | 820909753230 | | Item Diameter | 4.5 Inches | | Item Dimensions | 4.5 x 0.88 x 0.04 inches | | Item Dimensions L x W | 4.5"L x 4.5"W | | Manufacturer | HANZGHOU GREATSTAR INDUSTRIAL CO.LTD | | Material Type | Aluminum Oxide, Ceramic, NorZon | | Maximum Rotational Speed | 13000 RPM | | Model | W124782A | | Number of Items | 20 | | Part Number | 820909753230 | | Product Dimensions | 4.5"L x 4.5"W | | Recommended Uses For Product | Grinding, Rust Removal | | Set Name | 20-Pack | | UPC | 820909753230 | | Unit Count | 20.0 Count | ## Product Details - **Brand:** WORKPRO - **Construction Type:** Grinding - **Grit Material:** Zirconia Alumina - **Grit Number:** 120 - **Product Dimensions:** 4.5"L x 4.5"W ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/81ZsNM4j1gL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71lDO08smlL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71VM0CMGIOL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71y7Ll73xxL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/71haCdaQ1XL.jpg) ## Available Options This product comes in different **Unit Count, Style** options. ## Questions & Answers **Q: Is this good for helping to rough shape wood? thx** A: Dear customer, these flap discs are good for finishing rough shape wood. **Q: Dose it come in a smaller arbor size?** A: Now we only have flap disc in 4 1/2 x 7/8 inch. **Q: Will these remove paint from a concrete porch?** A: Yes **Q: Does anyone know of an adapter to put these flap discs on a rotozip (1/4” shank)?** A: Dear customer, for safety reasons, we don't recommend to use these 7/8'' arbor flap discs on a rotozip with 1/4'' shank. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Price for the Job *by J***D on May 26, 2026* Work great, last a while cleaning up welds. ### ⭐⭐⭐⭐⭐ Great grinding disks *by C***Y on December 24, 2025* Work great and seem to be of good quality ### ⭐⭐⭐⭐ Seem to be real decent and good value *by T***R on January 28, 2020* I will update this review if I have a real problem with one or one falls apart. I have not had the chance to use these to much, only used one disc a handful of short times because lately I have been using my other 7" grinder. I have noticed the wear seems to be a bit on the faster side, though it still has plenty life left, just showing signs of wear faster than my black and yellows but was expected. The overall build quality I would give a solid 3.8 out of 5, almost a 4. I mostly have expensive flappers so that's what I'm comparing to and you definitely see and feel the difference, the weight, thickness, density, glue etc all being what I would call fair quality, but again that was expected. But I will say for the difference in cost vs my others, unless something bad happens, these seem like a all around better value. If I dont update this saying junk or blew apart on me or something, then I reccomend them and have probably bought more ## Frequently Bought Together - 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 - WORKPRO 20-Pack Cut-Off Wheels, 4-1/2 x 7/8-inch Metal&Stainless Steel Cutting Wheel, Thin Metal Cutting Disc for Angle Grinder - DEWALT 20V MAX* Angle Grinder Tool, Tool Only (DCG413B) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/112319618-workpro-20-pack-flap-discs-4-1-2-inch-arbor](https://www.desertcart.co.th/products/112319618-workpro-20-pack-flap-discs-4-1-2-inch-arbor) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-07-10*