{"product_id":"hertel-336-203070-countersink-1-4-in-90-deg-6-flute-carbide","title":"Hertel 336-203070 Countersink 1\/4 in 90 Deg 6 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 336-203070 is a solid carbide countersink designed for producing clean, chamfered seat profiles in metal and other hard materials. With a 1\/4-inch head diameter, a 90-degree included angle, and six flutes, this tool delivers smooth cutting action and a fine finish in precision deburring, countersinking for flat-head fasteners, and edge-chamfering operations. The straight-cylindrical shank measures 1\/4 inch in diameter, making it compatible with standard drill chucks and collet-style toolholding systems. Machinists, tool-and-die technicians, and metalworking fabricators use this type of countersink for both manual and CNC machine applications.\u003c\/p\u003e\n\u003cp\u003eThis countersink suits light- to medium-duty metalworking applications where tight tolerances and a clean seating surface are required. The 90-degree included angle matches the standard geometry for most flat-head machine screw and bolt installations. The six-flute design reduces chatter compared to lower-flute-count countersinks, producing a finer surface finish in a single pass. Typical applications include precision sheet metal work, fixture fabrication, and aerospace or industrial component preparation where controlled countersink depth and angle accuracy are critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-inch head diameter provides compact geometry for small-fastener seating and tight clearance applications\u003c\/li\u003e\n  \u003cli\u003e90-degree included angle matches standard flat-head fastener geometry\u003c\/li\u003e\n  \u003cli\u003eSix-flute design minimizes chatter and produces a finer finish than 3- or 4-flute alternatives\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction offers superior hardness and wear resistance compared to high-speed steel\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eTip diameter of 0.050 inches enables accurate pilot entry and consistent seat geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard-geometry countersink for use with straight-shank drill chucks and collet toolholding systems accepting a 1\/4-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed and used by machinists and metalworking technicians in drill press, milling machine, or CNC machining center setups. Secure the shank firmly in a collet or drill chuck before operation, and verify that spindle speed is appropriate for the workpiece material and tool diameter. Carbide tooling is brittle — avoid side-loading or impact contact, and never use on interrupted cuts without confirming the tool is rated for that application. Power down and de-energize all equipment before changing tooling.\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: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\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\u003eTip Diameter\u003c\/strong\u003e: 0.050 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3 inches x 0.5 inches x 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 pounds\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: 336-203070\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51736570003762,"sku":"336-203070","price":49.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3d58bbb67af1122c6306c602c6fb99a4.jpg?v=1788778723","url":"https:\/\/voomisupply.com\/products\/hertel-336-203070-countersink-1-4-in-90-deg-6-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}