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Free standard shipping on orders over $200 in the US Interstates.
Estimated to be shipped in 48 hours.
Other Market please contact us for details.We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
The Peak of Speed and Cooling Efficiency
"For contractors, the biggest enemy of a cup wheel is heat buildup and dust clogging. At Supreme Diamond Tools, we engineered the CW-ST/P Spiral Turbo Series to act as an integrated cooling fan. The slanted turbo segments don't just grind; they actively pull air through the tool and eject debris away from the work surface. This creates a faster 'bite' on hard concrete and leaves a smooth, swirl-free finish that saves hours in secondary polishing."
— The Supreme Diamond Engineering Team
The Supreme Professional Spiral Turbo Diamond Cup Wheel is our most versatile grinding tool for rapid material removal and precision finishing. Featuring high-density 5mm segments and a specialized spiral geometry, these wheels are designed for high-production surface preparation on concrete floors, masonry, and natural stone.
| Product Code | Diameter | Segment Height | Hub Thread |
|---|---|---|---|
| CW-ST4/P | 4" (100mm) | 5mm | 5/8"-11 Threaded |
| CW-ST4.5/P | 4.5" (115mm) | 5mm | 5/8"-11 Threaded |
| CW-ST5/P | 5" (125mm) | 5mm | 5/8"-11 Threaded |
| CW-ST7/P | 7" (180mm) | 5mm | 5/8"-11 Threaded |
Managing Dust: Because the spiral turbo design is so aggressive at ejecting debris, it generates significant dust. We highly recommend using a dust shroud with a HEPA vacuum. This not only keeps the site OSHA-compliant but also ensures the spiral fins remain clear for maximum cooling, which is essential when shaping natural stone like granite or hard basalt.
Concrete Floor Leveling | Mortar & Masonry Smoothing | Adhesive, Glue & Epoxy Removal | Edge Grinding & Stone Shaping | Surface Preparation for Sealants | High-Production Construction Tasks
Q: What makes "Spiral Turbo" different from "Double Row" wheels?
A: While Double Row wheels are great for general smoothing, the Spiral Turbo is faster at removing stock and much better at cooling. If you are working on very hard concrete or stone, the Spiral Turbo will stay aggressive longer without glazing.
Q: Can I use this on my handheld grinder dry?
A: Absolutely. These are optimized for high-heat dry grinding. For even longer life and a dust-free experience, using water (wet grinding) is also highly effective.
📦 Bulk Procurement & Contractor Supply: Supreme Diamond Tools serves flooring specialists and global supply houses. For wholesale tiered pricing, OEM branding, or international logistics from our Tianjin and Zhejiang manufacturing hubs, please contact our technical sales division.
Choosing the wrong bond or segment type can cost you time and profit. Read our Surface Prep 101 Masterclass to learn the science of tool selection, concrete hardness testing, and cost-per-square-foot optimization.
Read the Selection Guide →
B2B & Fleet Supply: With 20+ years of diamond tool expertise, we support large-scale industrial projects.
Request a Bulk Quote for Professional Pricing →
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
I’ve tried other brands, but the Supreme Diamond cup wheel really stands out. It grinds evenly, doesn’t bounce around, and works great both wet and dry. Highly recommend for contractors.
I used the 7” wheel for leveling a large patio slab. It lasted longer than expected and handled tough epoxy coatings without slowing down. Very impressed with the quality.
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