{"product_id":"bullard-37638-flap-disc-type-29-zirconium-4-5-inch-80-grit","title":"Bullard 37638 Flap Disc Type 29 Zirconium 4.5 Inch 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BULLARD 37638 is a zirconium flap disc engineered for metal grinding and finishing applications. Built to the Type 29 high-profile geometry, it presents the abrasive surface at an angle that concentrates cutting pressure on the workpiece, improving material removal rates on flat and contoured surfaces. The disc measures 4.5 inches in diameter with a 5\/8-11 threaded hub and is rated to a maximum of 13,300 RPM. The 80-grit zirconium abrasive delivers an aggressive cut while leaving a consistent surface finish, making it suited for weld removal, edge blending, and surface prep on mild steel, stainless steel, and other metals. Discs are sold individually, with a box quantity of 10 units.\u003c\/p\u003e\u003cp\u003eThis flap disc is intended for use with 4.5-inch right-angle grinders equipped with a 5\/8-11 threaded spindle. It is a standard selection for metal fabrication shops, welding operations, and structural steel work where both grinding and finishing are performed in a single pass. The Type 29 profile is commonly chosen when the operator needs to maintain consistent contact across broader surface areas or work at a lower angle to the material.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eType 29 high-profile geometry for angled grinding contact and increased surface coverage\u003c\/li\u003e\n\u003cli\u003eZirconium abrasive grain for aggressive stock removal and extended disc life on metal\u003c\/li\u003e\n\u003cli\u003e80-grit rating balances material removal speed with surface finish quality\u003c\/li\u003e\n\u003cli\u003e5\/8-11 threaded hub fits standard 4.5-inch right-angle grinders\u003c\/li\u003e\n\u003cli\u003e13,300 RPM maximum speed rating\u003c\/li\u003e\n\u003cli\u003eSold in a box of 10 discs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 4.5-inch right-angle grinders fitted with a 5\/8-11 threaded spindle. Suitable for grinding and finishing mild steel, stainless steel, and similar metals.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eDisc mounting and use should be performed by qualified personnel following ANSI B7.1 and tool manufacturer guidelines. Confirm the grinder spindle speed does not exceed the 13,300 RPM disc rating before operation. Inspect the disc for damage before each use and never operate a cracked or delaminated disc. Appropriate PPE including face shield, gloves, and hearing protection is required during grinding operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub Thread\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Type\u003c\/strong\u003e: Type 29 High Profile\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Zirconium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Metal Grinding and Finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BULLARD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 37638\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BULLARD","offers":[{"title":"Default Title","offer_id":51343008104754,"sku":"37638","price":16.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310468785.jpg?v=1782013605","url":"https:\/\/voomisupply.com\/products\/bullard-37638-flap-disc-type-29-zirconium-4-5-inch-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}