{"product_id":"irwin-industrial-tool-co-12413-countersink-drill-bit-3-4in","title":"Irwin Industrial Tool Co 12413 Countersink Drill Bit 3\/4in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IRWIN INDUSTRIAL TOOL CO 12413 is a 3\/4 inch high speed steel countersink drill bit designed for fast, accurate countersinking in a wide range of machinable materials. The tip is milled and precision ground to an 82-degree angle, delivering clean, consistent entry points for flathead fasteners. A black oxide coating provides corrosion resistance and helps the bit run cooler under load. Five flutes reduce vibration during operation, which improves hole quality and extends tool life. The 1\/4 inch round shank is compatible with standard drill chucks. This bit is sold in a package of 5 units.\u003c\/p\u003e\n\u003cp\u003eThis countersink bit is suited for metalworking, woodworking, and general fabrication tasks where flush fastener seating is required. The 82-degree geometry is the standard angle for most flathead machine screws and matches the countersink specifications found in common machining and assembly applications. It is a practical choice for electricians, HVAC installers, plumbers, and general contractors who need reliable countersinking in sheet metal, aluminum, mild steel, wood, and similar materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision-ground 82-degree tip for accurate countersinking in most machinable materials\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction for durability and heat resistance\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating for corrosion resistance and reduced friction\u003c\/li\u003e\n  \u003cli\u003e5-flute design minimizes vibration and improves cut quality\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch round shank fits standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eSold as a package of 5 bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks accepting a 1\/4 inch round shank. Suitable for countersinking most machinable materials including mild steel, aluminum, wood, and plastics at the standard 82-degree flathead fastener angle.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the shank securely into a drill chuck before use and confirm the chuck is fully tightened. Power down or unplug the drill before changing bits. Use appropriate eye protection and work-holding devices when countersinking metal. Reduce feed pressure and use a cutting lubricant when working in harder metals to preserve the cutting edge.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBit Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Angle\u003c\/strong\u003e: 82 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Size\u003c\/strong\u003e: 1\/4 inches round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.6 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: IRWIN INDUSTRIAL TOOL CO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12413\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IRWIN","offers":[{"title":"Default Title","offer_id":51559097008434,"sku":"12413","price":109.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0c8743fff89a049bd0997f7aa4c6c0de.jpg?v=1786427443","url":"https:\/\/voomisupply.com\/products\/irwin-industrial-tool-co-12413-countersink-drill-bit-3-4in","provider":"Voomi Supply","version":"1.0","type":"link"}