{"product_id":"hertel-331-203060-countersink-1-4-in-82-degree-1-flute-carbide","title":"Hertel 331-203060 Countersink 1\/4 in 82 Degree 1 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 331-203060 is a single-flute carbide countersink designed for producing clean, accurate countersunk holes in a wide range of materials. With a 1\/4-inch head diameter and an 82-degree included angle, this tool is sized for standard flat-head fastener seating in light machining and fabrication work. The straight cylindrical shank measures 1\/4 inch in diameter, allowing it to seat securely in standard drill chucks and collet holders. Carbide construction delivers hardness and wear resistance well beyond high-speed steel, making it suitable for harder workpiece materials and higher-volume runs where edge retention matters.\u003c\/p\u003e\n\u003cp\u003eThis countersink fits typical bench drilling, CNC, and hand-held drill press operations in machine shops, fabrication facilities, and maintenance environments. The 82-degree angle matches the U.S. standard for flat-head machine screws and is the correct angle for most aerospace and general-purpose countersinking applications. The single-flute geometry reduces chatter and produces a smoother finish compared to multi-flute designs, which is particularly useful in softer metals and plastics where chatter can distort the seat.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-inch head diameter sized for compact countersinking tasks and tight clearance areas\u003c\/li\u003e\n  \u003cli\u003e82-degree included angle matches U.S. standard flat-head fastener geometry\u003c\/li\u003e\n  \u003cli\u003eSingle-flute design minimizes chatter and produces a smooth countersink finish\u003c\/li\u003e\n  \u003cli\u003eCarbide construction provides superior hardness and edge retention over high-speed steel\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch straight cylindrical shank fits standard chucks and collet holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct substitute countersink for machine shop, fabrication, and maintenance drilling setups requiring a 1\/4-inch, 82-degree single-flute carbide tool with a straight cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed and operated by machinists, tool-and-die workers, and skilled maintenance technicians. Secure the shank fully in the chuck or collet before operation and confirm the drill press or CNC spindle is powered down and locked out before tooling changes. Use cutting fluid appropriate to the workpiece material to extend tool life. Do not exceed the recommended RPM range for the workpiece material and tool diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.25 inches\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: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 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: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112812\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 331-203060\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51754687725874,"sku":"331-203060","price":51.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a63ed8e0d0425c6da05e274720654dac.jpg?v=1788947832","url":"https:\/\/voomisupply.com\/products\/hertel-331-203060-countersink-1-4-in-82-degree-1-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}