{"product_id":"hertel-18678-countersink-1-in-82-degree-4-flute-hss","title":"Hertel 18678 Countersink 1 in 82 Degree 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 18678 is a single-piece high speed steel countersink designed for producing clean, chamfered entry holes in metal workpieces. With a 1-inch head diameter, an 82-degree included angle, and 4 flutes, this tool delivers smooth cutting action and accurate seat geometry on ferrous and non-ferrous materials. The straight-cylindrical shank measures 0.5 inches in diameter, making it compatible with standard drill chucks and collet holders. It is used in machine shop, manufacturing, and maintenance environments where consistent countersink depth and surface finish are required.\u003c\/p\u003e\n\u003cp\u003eThis countersink is suited for drilling and metalworking applications where flathead fastener seating, deburring, or chamfering operations are performed on steel, aluminum, and similar materials. The 82-degree included angle matches the standard geometry for flathead machine screws commonly used in aerospace and general metalworking applications. It is appropriate for use in drill presses, CNC machining centers, and manual milling setups. Machinists, toolroom technicians, and maintenance mechanics are the typical users of this tool.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-inch head diameter provides coverage for a wide range of fastener hole sizes\u003c\/li\u003e\n  \u003cli\u003e82-degree included angle matches standard flathead machine screw geometry\u003c\/li\u003e\n  \u003cli\u003e4-flute design promotes smooth cutting and reduced chatter\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction offers durability across ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks and collet holders without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style single-body countersink for use in drill presses, CNC machining centers, and manual drilling setups that accept a 0.5-inch straight-cylindrical shank tooling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by machinists and toolroom technicians using standard drill chucks or collet-style tool holders. Secure the shank fully in the holder before operation and verify runout before cutting. Use appropriate cutting fluid for the workpiece material to extend tool life. Power down the spindle completely before changing or inspecting the tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 82 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112812\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 18678\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51748228694322,"sku":"18678","price":270.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f3b16c09cc76f6a4f6a9e78222e1876.jpg?v=1788890704","url":"https:\/\/voomisupply.com\/products\/hertel-18678-countersink-1-in-82-degree-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}