{"product_id":"7-cup-wheel-s-shape-medium-bond-30-grit","title":"7\" Cup Wheel, S-Shape, Medium Bond 30 Grit","description":"\u003cp\u003e\u003cstrong\u003e- Aggressive metal-bond diamond cup wheel for 7\" hand grinders\u003c\/strong\u003e — designed for fast stock removal on concrete and masonry. The 30-grit metal-bonded diamonds tear through epoxy, paint, glue, mastic, and surface deformities efficiently, making this a go-to choice for coating removal and slab prep before refinement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- S-shape segment geometry for smoother, cooler cutting\u003c\/strong\u003e — the S-shape (also called zigzag) segment profile creates curved channels around the cup that improve airflow and dust evacuation as the wheel spins. The result is a cooler-running wheel with less heat buildup at the cutting edge, extending diamond life and reducing the risk of bond breakdown during long runs. The S-curve also produces a smoother scratch pattern than aggressive arrow or double-row segments at the same grit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- Medium bond for the most common concrete hardness\u003c\/strong\u003e — medium bond is balanced for typical commercial and residential slabs (3,000–5,000 PSI, Mohs 5–6) — the default choice when slab hardness is unknown. On much softer concrete, the medium bond will wear out faster; on much harder concrete, it may glaze and lose cutting action. Run a Mohs scratch test if slab hardness is in question.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- 5\/8\"-11 threaded arbor for direct grinder mounting\u003c\/strong\u003e — fits any 7\" hand grinder with a 5\/8\"-11 threaded spindle, no flange or backing pad required. Always verify the wheel's stamped maximum RPM against your grinder's rated speed before use. Suitable for wet or dry grinding, though dust shrouds plus HEPA vacuum are required for indoor work under OSHA silica standard 29 CFR 1926.1153.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e- The balanced choice between aggressive cut and smooth finish\u003c\/strong\u003e — choose S-shape over arrow segments when you want fast removal with less scratch chasing on the next step. Choose S-shape over double-row when heat management matters (long continuous runs, hot weather, or hard concrete that resists cutting). After this pass, the typical sequence steps up through finer cup wheels or transitions to walk-behind floor grinder tooling for the rest of the job.\u003c\/p\u003e","brand":"Xiamen Murat Tool Ltd.","offers":[{"title":"Default Title","offer_id":52141665059097,"sku":"40006266","price":67.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0883\/9803\/7273\/files\/BC_Upload_a3234c92-1de3-48a2-a149-429a48aef50f.png?v=1777584598","url":"https:\/\/shop.simiron.com\/products\/7-cup-wheel-s-shape-medium-bond-30-grit","provider":"Simiron","version":"1.0","type":"link"}