--- product_id: 31993488 title: "Flooring & Tiling Blade Crain Diamond Undercut Saw Blade" brand: "marshalltown" price: "฿6352" currency: THB in_stock: true reviews_count: 8 category: "Marshalltown" url: https://www.desertcart.co.th/products/31993488-flooring-and-tiling-blade-crain-diamond-undercut-saw-blade store_origin: TH region: Thailand --- # Max speed 10,000 RPM for rapid cuts 64 diamond-tipped teeth for precision Cuts brick, stone, marble & granite Flooring & Tiling Blade Crain Diamond Undercut Saw Blade **Brand:** marshalltown **Price:** ฿6352 **Availability:** ✅ In Stock ## Summary > 💎 Cut like a pro, finish like a boss. ## Quick Answers - **What is this?** Flooring & Tiling Blade Crain Diamond Undercut Saw Blade by marshalltown - **How much does it cost?** ฿6352 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/31993488-flooring-and-tiling-blade-crain-diamond-undercut-saw-blade) ## Best For - marshalltown enthusiasts ## Why This Product - Trusted marshalltown brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High-Speed Efficiency:** Engineered for up to 10,000 RPM to power through tough masonry with ease. - • **Precision Diamond Edge:** 64 industrial-grade diamond teeth deliver flawless undercuts every time. - • **Perfect Fit for SuperSaw:** Specifically designed for SuperSaw models 812, 820, and 825 for optimal performance. - • **Dust-Controlled Clean Cuts:** Enables clean, flush cuts that save time on finishing and cleanup—because your project deserves perfection. - • **Versatile Material Compatibility:** Seamlessly cuts brick, concrete, stone, marble, and granite—your all-in-one blade. ## Overview The Marshalltown 822SB Crain Diamond Undercut Saw Blade is a premium, industrial-grade blade designed exclusively for SuperSaw models 812, 820, and 825. Featuring 64 diamond-tipped teeth, it delivers precise, high-speed cuts up to 10,000 RPM through brick, concrete, stone, marble, and granite. Ideal for undercutting fireplaces and flooring installations, this blade ensures clean, flush cuts that minimize finishing work and dust, making it a must-have for professional-grade masonry and tiling projects. ## Description Marshalltown 822SB Flooring & Tiling Blade Crain Diamond Undercut Saw Blade Review: A must for undercutting a stone/brick fireplace for laminate flooring! - I had to undercut a stone fireplace to slide the laminate flooring under it. A previous reviewer had some great tips. Here are my suggestions. Mask off the room where the fireplace is. (Plastic sheeting on the door/hallway openings). Completely cover the floor and any furniture in the room (unless you like dusty furniture). Even with masking you get a bunch of unwanted dust in the house. Buy/wear a respirator! Lots of fine dust will be generated with this process.If you can, get a second person with a shop vac to go right before your cut ( look on "Youtube for "Undercut a Stone Fireplace", there's a UK video which shows the Crain saw with the diamond blade in action). As the other reviewer stated make two cuts into the grout/brick/stone. One on the deck (flush with the sub-floor), and second pass an eight on inch higher than your flooring material. How deep do you go? That depends on your fireplace. With a straight brick fireplace you can get away with a 1/2 inch deep cut, but with a stone fireplace where the stones are uneven it can very (I had to set the saw 7/8 inch to get the depth I needed). This saw blade is excellent for the job. Once you finish (and allow the dust to settle), take a chisel to make sure your grove is uniform). Shop vac up the mess. The blade was expensive, but worth it. Review: Great tool for cutting brick - I used this blade to undercut a fireplace hearth for installation of a hardwood floor. It worked great in the SuperSaw (rented from Hiome Depot with only the standard blade, so we had to buy this special diamond blade, which Home Depot does not sell) which seems to be the only tool available to cut flush with the floor (with its recessed center screw). We cut through the concrete flush with the sub-floor and then another cut in the brick 3/4 inches above the sub-floor, both cuts about 3/4" deep, and then chiseled out between. It worked great, though it generated a lot of brick dust. Luckily we sealed off the room with plastic so we only had to vacuum up the dust in the one room. Then we put the hardwood boards right underneath which saved the trouble of framing the un-square hearth, and looks better because there are no gaps. Anyway, the blade worked great for cutting the brick, we were done with the job in less than an hour, in time to return the SuperSaw to Home Depot well within the 4-hour $18 rental period. Now we're done with the blade after less than an hour use- anyone want to buy a used blade? ;) ## Features - For use with SuperSaw models 812, 820 and 825 - Use for brick, concrete, stone, marble, granite and more - Not for cutting steel or aluminum - Maximum safe speed 10,000 RPM - The finest commercial grade light equipment available ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0009H5CIO | | Best Sellers Rank | #298,435 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #778 in Circular Saw Blades | | Brand Name | MARSHALLTOWN | | Color | Multi | | Compatible Material | Alloy Steel, Aluminum, Marble, Stone | | Customer Reviews | 4.5 4.5 out of 5 stars (106) | | Global Trade Identification Number | 00734995822001 | | Included Components | Flooring & Tiling Blade Crain Diamond Undercut Saw Blade | | Item Dimensions L x W | 6.5"L x 1"W | | Item Type Name | Flooring & Tiling Blade Crain Diamond Undercut Saw Blade | | Item Weight | 0.65 Pounds | | Manufacturer | Crain Cutter Co. | | Material Type | Blend | | Model | 822SB | | Number of Teeth | 64 | | Part Number | 822 | | Set Name | Crain Super Saw Replacement Blades Set | | Style Name | Industrial | | UPC | 734995822001 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** MARSHALLTOWN - **Color:** Multi - **Global Trade Identification Number:** 00734995822001 - **Item Weight:** 0.65 Pounds - **Material:** Blend - **Number of Teeth:** 64 - **Product Dimensions:** 6.5"L x 1"W - **Set Name:** Crain Super Saw Replacement Blades Set - **Style:** Industrial - **UPC:** 734995822001 ## Images ![Flooring & Tiling Blade Crain Diamond Undercut Saw Blade - Image 1](https://m.media-amazon.com/images/I/71Xtj1-rNUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must for undercutting a stone/brick fireplace for laminate flooring! *by W***D on November 6, 2015* I had to undercut a stone fireplace to slide the laminate flooring under it. A previous reviewer had some great tips. Here are my suggestions. Mask off the room where the fireplace is. (Plastic sheeting on the door/hallway openings). Completely cover the floor and any furniture in the room (unless you like dusty furniture). Even with masking you get a bunch of unwanted dust in the house. Buy/wear a respirator! Lots of fine dust will be generated with this process.If you can, get a second person with a shop vac to go right before your cut ( look on "Youtube for "Undercut a Stone Fireplace", there's a UK video which shows the Crain saw with the diamond blade in action). As the other reviewer stated make two cuts into the grout/brick/stone. One on the deck (flush with the sub-floor), and second pass an eight on inch higher than your flooring material. How deep do you go? That depends on your fireplace. With a straight brick fireplace you can get away with a 1/2 inch deep cut, but with a stone fireplace where the stones are uneven it can very (I had to set the saw 7/8 inch to get the depth I needed). This saw blade is excellent for the job. Once you finish (and allow the dust to settle), take a chisel to make sure your grove is uniform). Shop vac up the mess. The blade was expensive, but worth it. ### ⭐⭐⭐⭐⭐ Great tool for cutting brick *by M***N on July 2, 2008* I used this blade to undercut a fireplace hearth for installation of a hardwood floor. It worked great in the SuperSaw (rented from Hiome Depot with only the standard blade, so we had to buy this special diamond blade, which Home Depot does not sell) which seems to be the only tool available to cut flush with the floor (with its recessed center screw). We cut through the concrete flush with the sub-floor and then another cut in the brick 3/4 inches above the sub-floor, both cuts about 3/4" deep, and then chiseled out between. It worked great, though it generated a lot of brick dust. Luckily we sealed off the room with plastic so we only had to vacuum up the dust in the one room. Then we put the hardwood boards right underneath which saved the trouble of framing the un-square hearth, and looks better because there are no gaps. Anyway, the blade worked great for cutting the brick, we were done with the job in less than an hour, in time to return the SuperSaw to Home Depot well within the 4-hour $18 rental period. Now we're done with the blade after less than an hour use- anyone want to buy a used blade? ;) ### ⭐⭐⭐⭐⭐ Very good blade *by D***N on December 7, 2023* Cut more then 100 feet of brick to install laminate flooring so I did not have to use quarter round next to the brick. Blade is still in great shape. ## Frequently Bought Together - Flooring & Tiling Blade Crain Diamond Undercut Saw Blade - Crain No. 835 Heavy-Duty Undercut Saw, Formerly Crain 825NEW - MARSHALLTOWN Crain Super Saw Replacement Blades, Carbide Tipped Blade, Made In The USA, 821SB --- ## 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/31993488-flooring-and-tiling-blade-crain-diamond-undercut-saw-blade](https://www.desertcart.co.th/products/31993488-flooring-and-tiling-blade-crain-diamond-undercut-saw-blade) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*