--- product_id: 27934260 title: "Benchmark Abrasives 4.5\" x 7/8\" Zirconia Type 29 Flap Discs, 40 Grit" brand: "benchmark abrasives" price: "271.95 DT" currency: TND in_stock: true reviews_count: 8 category: "Benchmark Abrasives" url: https://www.desertcart.tn/products/27934260-benchmark-abrasives-4-5-x-7-8-zirconia-type-29 store_origin: TN region: Tunisia --- # High-density jumbo zirconia for aggressive abrasion Fits 7/8" arbor, compatible with major grinders 4.5" diameter for versatile grinding Benchmark Abrasives 4.5" x 7/8" Zirconia Type 29 Flap Discs, 40 Grit **Brand:** benchmark abrasives **Price:** 271.95 DT **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your grind game with the ultimate zirconia power tool upgrade! ## Quick Answers - **What is this?** Benchmark Abrasives 4.5" x 7/8" Zirconia Type 29 Flap Discs, 40 Grit by benchmark abrasives - **How much does it cost?** 271.95 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/27934260-benchmark-abrasives-4-5-x-7-8-zirconia-type-29) ## Best For - benchmark abrasives enthusiasts ## Why This Product - Trusted benchmark abrasives brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heat-Resistant Efficiency:** Optimized for heat dissipation to maintain peak performance during extended grinding sessions—no burnout, just smooth results. - • **Industrial-Grade Build Quality:** Exceeds ANSI & EU standards, engineered for heavy-duty stock removal and flawless surface blending. - • **Precision Fit for Top Grinders:** Seamlessly compatible with Dewalt, Milwaukee, Makita, Bosch, and other leading brands for a secure, wobble-free fit. - • **Versatile Multi-Material Mastery:** Effortlessly sands and finishes steel, titanium, wood, fiberglass, and more—your all-in-one workshop essential. - • **Unmatched Durability & Performance:** Premium zirconia cloth ensures long-lasting, consistent abrasion for pro-level results every time. ## Overview Benchmark Abrasives 4.5" x 7/8" Jumbo Zirconia Type 29 Flap Discs deliver professional-grade sanding and finishing with high-density zirconia cloth, compatible with most 4.5" angle grinders. Engineered for durability, heat resistance, and multi-material use, these discs exceed industrial standards, making them the go-to choice for pros and serious DIYers seeking efficient, long-lasting abrasive performance. ## Description Benchmark Abrasives 4.5" x 7/8" Jumbo Zirconia Type 29 Flap Discs, High Density Sanding and Finishing Wheels for Angle Grinder, 40 Grit, 10-Count: desertcart.com: Industrial & Scientific Review: great product - I recently had the opportunity to test the Benchmark Abrasives 4.5" x 7/8" Premium High-Density Jumbo Zirconia Type 29 Flap Discs, and I am thoroughly impressed with their performance and durability. The first thing that caught my attention was the build quality. These flap discs are well-crafted with precision, and the high-density jumbo zirconia material used ensures superior strength and longevity. The 4.5" size and 7/8" arbor make them versatile and compatible with a variety of angle grinders. What sets these flap discs apart is their exceptional abrasive power. Whether I was working on metal or wood, the Benchmark Abrasives discs exhibited consistent and aggressive grinding action. The Type 29 design further enhances their versatility, allowing for smooth contouring and blending on different surfaces. Durability is a key factor for me when it comes to abrasive discs, and I am pleased to say that these flap discs exceeded my expectations. The zirconia construction not only delivers powerful abrasion but also ensures a longer lifespan compared to standard discs. This longevity translates to cost savings over time, making them a practical choice for both DIY enthusiasts and professionals. Another notable feature is the efficient heat dissipation. Even during prolonged use, the Benchmark Abrasives flap discs maintained their effectiveness without overheating. This is crucial for achieving consistent results and prolonging the life of the discs. In conclusion, the Benchmark Abrasives 4.5" x 7/8" Premium High-Density Jumbo Zirconia Type 29 Flap Discs are a top-notch choice for anyone seeking reliable and high-performance abrasive discs. Their durability, versatility, and efficient grinding action make them an excellent investment for various applications. I highly recommend these flap discs to fellow craftsmen and DIY enthusiasts looking for a superior grinding experience. Review: Best bang for your buck! - These are great for welding! They aren't as aggressive as some other brands but they last a good amount of time. I think theyre probably the best bang for your buck. I tested some ezarc against these, and the ezarcs cut a bit faster, but wore out 3-4 times faster. ## Features - HIGH-DENSITY JUMBO DESIGN: Type 29 flap discs with a high-density jumbo layout support surface blending, beveling, grinding, deburring, and edge chamfering. Curved profile aids finishing, stock removal, and rust cleanup for pros and DIY enthusiasts. - EUROPEAN ZIRCONIA CLOTH: Built with premium zirconia cloth featuring uniform particle size and a superior ingredient blend for consistent abrasion. Quality abrasive backing pairs with durable flaps for enhanced cutting efficiency and durability. - MULTI-MATERIAL USE: Suitable for cast iron, steel, stainless steel, titanium, fiberglass, wood, and more to match varied shop needs. Works in automotive, transportation, mining, shipbuilding, construction, welding, foundries, and fabrication. - WIDE GRINDER COMPATIBILITY: Fits Dewalt, Milwaukee, Makita, Bosch, Metabo, Ryobi, Black & Decker, Kobalt, Craftsman, Skil, Porter Cable, Ridgid, and any 7/8-inch arbor angle grinder. Compatible with 4 1/2-inch and 5-inch grinders for a precise and secure fit. - INDUSTRIAL STANDARD BUILD: Manufactured to exceed ANSI and EU European Standards for abrasive products, these flap discs handle everything from aggressive stock removal to delicate surface blending, meeting the most demanding shop environments. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01D0HA3LK | | Best Sellers Rank | #1,135 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Flap Discs | | Brand | Benchmark Abrasives | | Brand Name | Benchmark Abrasives | | Compatible Devices | Angle Grinder | | Compatible Disc Grinder Tool Models | DEWALT DWE4559CN | | Compatible Material | Stainless Steel | | Construction Type | Grinding | | Customer Reviews | 4.7 out of 5 stars 2,181 Reviews | | Grit Material | Zirconia | | Grit Material Type | Zirconia | | Grit Number | 40 | | Grit Type | Coarse | | Included Components | Flap Discs | | Industry Standard Identifier | Type 29 | | Item Diameter | 4.5 Inches | | Item Dimensions | 4.5 x 4.5 x 0.5 inches | | Item Dimensions L x W | 4.5"L x 4.5"W | | Item Thickness | 0.88 Inches | | Item Weight | 4 ounces | | Manufacturer | Benchmark Abrasives | | Material Type | Premium Zirconia Grains | | Maximum Rotational Speed | 13300 RPM | | Number of Items | 10 | | Part Number | BM-F4.5SZ40T29HD | | Product Dimensions | 4.5"L x 4.5"W | | Recommended Uses For Product | Rust Removal | | Set Name | Grit Size | | UPC | 072802810699 728028210699 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Benchmark Abrasives - **Compatible Devices:** Angle Grinder - **Grit Material:** Zirconia - **Grit Type:** Coarse - **Product Dimensions:** 4.5"L x 4.5"W ## Images ![Benchmark Abrasives 4.5" x 7/8" Zirconia Type 29 Flap Discs, 40 Grit - Image 1](https://m.media-amazon.com/images/I/71LKMXpx7gL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: would these work to remove paint off a concrete floor?** A: Yes, but if you have a large area to do the discs will get gunked up with paint. Might want to use paint remover and a metal scraper. **Q: Are these good for wood?** A: They are actually VERY good on wood. Much faster than most sanders. You have to have a steady hand though. **Q: can this be used for sanding a jon boat?** A: I wouldn't recommend this for sanding a Jon boat as too much pressure with a grinder could penetrate the skin of the boat. **Q: what grit on these discs would be best to remove light rust and smooth paint on body of a 10 wheel dump truck** A: I would think 80 grit would do best for the light work you’re describing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ great product *by J***E on January 20, 2024* I recently had the opportunity to test the Benchmark Abrasives 4.5" x 7/8" Premium High-Density Jumbo Zirconia Type 29 Flap Discs, and I am thoroughly impressed with their performance and durability. The first thing that caught my attention was the build quality. These flap discs are well-crafted with precision, and the high-density jumbo zirconia material used ensures superior strength and longevity. The 4.5" size and 7/8" arbor make them versatile and compatible with a variety of angle grinders. What sets these flap discs apart is their exceptional abrasive power. Whether I was working on metal or wood, the Benchmark Abrasives discs exhibited consistent and aggressive grinding action. The Type 29 design further enhances their versatility, allowing for smooth contouring and blending on different surfaces. Durability is a key factor for me when it comes to abrasive discs, and I am pleased to say that these flap discs exceeded my expectations. The zirconia construction not only delivers powerful abrasion but also ensures a longer lifespan compared to standard discs. This longevity translates to cost savings over time, making them a practical choice for both DIY enthusiasts and professionals. Another notable feature is the efficient heat dissipation. Even during prolonged use, the Benchmark Abrasives flap discs maintained their effectiveness without overheating. This is crucial for achieving consistent results and prolonging the life of the discs. In conclusion, the Benchmark Abrasives 4.5" x 7/8" Premium High-Density Jumbo Zirconia Type 29 Flap Discs are a top-notch choice for anyone seeking reliable and high-performance abrasive discs. Their durability, versatility, and efficient grinding action make them an excellent investment for various applications. I highly recommend these flap discs to fellow craftsmen and DIY enthusiasts looking for a superior grinding experience. ### ⭐⭐⭐⭐⭐ Best bang for your buck! *by T***R on May 8, 2026* These are great for welding! They aren't as aggressive as some other brands but they last a good amount of time. I think theyre probably the best bang for your buck. I tested some ezarc against these, and the ezarcs cut a bit faster, but wore out 3-4 times faster. ### ⭐⭐⭐⭐⭐ Excellent quality and performance *by V***R on January 2, 2026* Extremely impressed with their performance as well as their longevity. The ones that would appear worn out my simply looking at them still work exceptionally well where you need a flap wheel, but you don’t need the aggressiveness of a new one. Will definitely be buying more of these. ## Frequently Bought Together - Benchmark Abrasives 4.5" x 7/8" Premium High Density Jumbo Zirconia Type 29 Flap Discs 4 1/2 for Angle Grinder, Sanding Discs, Finishing - Grinding Wheels 4 1/2 Inch (10 Pack) - 40 Grit - Benchmark Abrasives Grinder Cut Off Wheels 4 1/2 Inch Aluminum Oxide Thin Type 1 Angle Grinder Cutting Disc for Metal, Stainless Steel - with 7/8" Arbor Hole, Fast Grinder Cutting Wheel - 50 Count - Benchmark Abrasives 6 Inch Aluminum Oxide Thin Type 1 Grinder Cut Off Wheels for Metal and Stainless Steel .045" Thick 7/8" Arbor, Angle Grinder Cutting Disc, Grinding Cutting Wheel - 25 Count --- ## 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.tn/products/27934260-benchmark-abrasives-4-5-x-7-8-zirconia-type-29](https://www.desertcart.tn/products/27934260-benchmark-abrasives-4-5-x-7-8-zirconia-type-29) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-14*