{"product_id":"brush-research-mfg-bc21424-flexible-cylinder-hone-240-grit","title":"Brush Research Mfg. BC21424 Flexible Cylinder Hone 240 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BRUSH RESEARCH MFG. BC21424 is a flexible cylinder hone designed for bore finishing, deglazing, and surface conditioning in cylindrical bores. Built with silicon carbide abrasive at 240 grit (extra fine grade), it produces a consistent crosshatch finish suitable for seating rings and restoring bore surfaces. The overall length is 8 inches with a 3-inch abrasive length and a shank diameter of 0.245 inches. It is rated for a maximum speed of 900 RPM and accommodates bore diameters up to 2.25 inches. Machinists, engine rebuilders, and maintenance technicians use this tool with a standard electric or pneumatic drill.\u003c\/p\u003e\n\u003cp\u003eThis hone is suited for use on mild steel, stainless steel, and cast iron bores in applications such as engine cylinder deglazing, hydraulic cylinder reconditioning, and general bore surface finishing. The flexible abrasive ball design allows the tool to self-center within the bore, making it practical for both production shop environments and field maintenance work where rigid honing equipment is not available.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSilicon carbide abrasive at 240 grit for extra fine surface finishing\u003c\/li\u003e\n  \u003cli\u003eFlexible ball-style design self-centers in bore for consistent contact\u003c\/li\u003e\n  \u003cli\u003e3-inch abrasive length accommodates a range of bore depths\u003c\/li\u003e\n  \u003cli\u003eMaximum bore diameter of 2.25 inches\u003c\/li\u003e\n  \u003cli\u003eRated up to 900 RPM for use with standard drill equipment\u003c\/li\u003e\n  \u003cli\u003eCompatible with mild steel, stainless steel, and cast iron workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cylindrical bore applications in mild steel, stainless steel, and cast iron materials. Fits bores up to 2.25 inches in diameter. Shank diameter of 0.245 inches is compatible with standard drill chucks used in electric and pneumatic hand drills.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the shank into a standard drill chuck and ensure it is securely tightened before operation. Do not exceed the rated maximum of 900 RPM. Apply honing oil or a suitable cutting fluid to the bore surface during use to extend abrasive life and improve finish quality. Always wear appropriate eye protection when operating rotary abrasive tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Silicon Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 240\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Extra Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Diameter\u003c\/strong\u003e: 2.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.245 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 900\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Mild Steel, Stainless Steel, Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.38 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BRUSH RESEARCH MFG.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: BC21424\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BRUSH RESEARCH MFG","offers":[{"title":"Default Title","offer_id":67911664828722,"sku":"BC21424","price":55.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/600127b8054436e35275f9cf045d98aa.jpg?v=1791215825","url":"https:\/\/voomisupply.com\/products\/brush-research-mfg-bc21424-flexible-cylinder-hone-240-grit","provider":"Voomi Supply","version":"1.0","type":"link"}