{"product_id":"supra-mm-stiff-natural-bristle-cup-brushes-9-16-diameter-1-4-trim-3-32-shank-pack-6","title":"Pack-6 Supra MM Stiff 1\/4\" Trim Natural Bristle Cup Brushes 9\/16\" Diameter Mounted on 3\/32\" Shanks","description":"\u003cp\u003eSupra MM Stiff Natural Bristle Cup Brushes deliver premium performance for jewelers and metalsmiths working on flat, curved, small, and hard-to-reach surfaces. At 9\/16\" in diameter with a 1\/4\" trim length and mounted on 3\/32\" shanks, these miniature cup brushes are purpose-built for fine detail finishing and polishing work.\u003c\/p\u003e\n\u003cp\u003eCrafted from natural animal hair, the bristle filaments are permanently anchored in a solid steel ring and uniformly distributed for consistent, even wear throughout the life of the brush. Available in both Soft and Stiff grades, this listing features the \u003cstrong\u003eStiff\u003c\/strong\u003e version for more aggressive finishing action. These brushes are \u003cstrong\u003emade in the USA\u003c\/strong\u003e with solid steel ring construction engineered for lasting durability under regular professional use.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNatural animal hair bristles for effective polishing and finishing\u003c\/li\u003e\n\u003cli\u003eStiff bristle grade for more aggressive surface action\u003c\/li\u003e\n\u003cli\u003ePermanently anchored filaments in a solid steel ring for secure, long-lasting performance\u003c\/li\u003e\n\u003cli\u003eUniformly distributed bristles for even wear and consistent results\u003c\/li\u003e\n\u003cli\u003eIdeal for flat, curved, small, and hard-to-reach surfaces\u003c\/li\u003e\n\u003cli\u003eMade in the USA with solid steel ring construction\u003c\/li\u003e\n\u003cli\u003eCompatible with standard flex-shaft handpieces and rotary tools accepting 3\/32\" shanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBristle Material\u003c\/th\u003e\n\u003ctd\u003eNatural animal hair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBristle Grade\u003c\/th\u003e\n\u003ctd\u003eStiff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCup Diameter\u003c\/th\u003e\n\u003ctd\u003e9\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTrim Length\u003c\/th\u003e\n\u003ctd\u003e1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Size\u003c\/th\u003e\n\u003ctd\u003e3\/32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Operating Speed\u003c\/th\u003e\n\u003ctd\u003e25,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRing Construction\u003c\/th\u003e\n\u003ctd\u003eSolid steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6 Supra MM Stiff Natural Bristle Cup Brushes (9\/16\" diameter, 3\/32\" shank)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supra","offers":[{"title":"Default Title","offer_id":43584343376086,"sku":"116.755","price":25.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/116.755NEW_thumb_5414ef5c-1bcd-46f0-bec4-32ca592b5c16.jpg?v=1744745950","url":"https:\/\/www.ottofrei.com\/products\/supra-mm-stiff-natural-bristle-cup-brushes-9-16-diameter-1-4-trim-3-32-shank-pack-6","provider":"Otto Frei","version":"1.0","type":"link"}