{"product_id":"century-drill-tool-75409-inverted-cone-rotary-file-1-2x7-8","title":"Century Drill Tool 75409 Inverted Cone Rotary File 1\/2x7\/8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CENTURY DRILL TOOL CO INC 75409 is an inverted cone rotary file designed for rasping and filing soft metals. The cutting head measures 1\/2 inch in diameter by 7\/8 inch in length and mounts on a 1\/4-inch shank that fits standard drill chucks. The body is machined from special alloy steel that has been hardened and tempered for extended service life and improved durability. Precision-ground cutting edges resist clogging and loading during use, maintaining consistent material removal throughout the job. This file is suited for deburring, shaping, and smoothing soft metal workpieces in fabrication, plumbing, HVAC, and general trade applications.\u003c\/p\u003e\u003cp\u003eThe 75409 is used wherever a rotary file is needed for working soft metals such as aluminum, copper, brass, and similar materials. The inverted cone profile makes it well suited for enlarging holes, cleaning up inside edges, and shaping recesses or tapered seats. The 1\/4-inch shank provides broad compatibility with handheld drills, drill presses, and flex-shaft tools. It is commonly used by HVAC technicians, plumbers, and pipefitters for fitting and finishing metal components during installation or repair work. Package quantity is 3 files per pack.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInverted cone profile sized at 1\/2 inch diameter by 7\/8 inch length\u003c\/li\u003e\n\u003cli\u003eSpecial alloy steel construction, hardened and tempered for long service life\u003c\/li\u003e\n\u003cli\u003ePrecision cutting edges resist clogging and loading under continuous use\u003c\/li\u003e\n\u003cli\u003e1\/4-inch shank fits standard drill chucks and flex-shaft tools\u003c\/li\u003e\n\u003cli\u003eDesigned for rasping and filing soft metals including aluminum, copper, and brass\u003c\/li\u003e\n\u003cli\u003eSold in a pack of 3 files\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eThe 1\/4-inch shank is compatible with standard drill chucks on handheld drills, drill presses, and rotary tools. Designed as a general-purpose rotary file for use in soft metal fabrication and finishing applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall the 1\/4-inch shank securely into the drill chuck before operating. Disconnect power to the drill or tool before changing files. Use appropriate eye protection and secure the workpiece before applying the rotary file. Inspect the file for cracks or damage before each use and replace if cutting edges show signs of wear or breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFile Type\u003c\/strong\u003e: Inverted Cone Rotary File\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Special Alloy Steel, Hardened and Tempered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Rasping and Filing Soft Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.22 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CENTURY DRILL TOOL CO INC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 75409\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CENTURY DRILL \u0026 TOOL","offers":[{"title":"Default Title","offer_id":51559664419122,"sku":"75409","price":24.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f7c96b5188b4bae6baa51818d460077.jpg?v=1786437580","url":"https:\/\/voomisupply.com\/products\/century-drill-tool-75409-inverted-cone-rotary-file-1-2x7-8","provider":"Voomi Supply","version":"1.0","type":"link"}