{"product_id":"hertel-c-e07-0480-aircraft-extension-drill-bit-12","title":"Hertel C.E07.0480 Aircraft Extension Drill Bit 12","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL C.E07.0480 is a wire gauge size 12 aircraft extension drill bit engineered for demanding drilling applications in tight or deep-access situations. Built from cobalt high-speed steel with a straw finish, this bit delivers elevated heat resistance and extended tool life when cutting through hard metals and alloys. The 135-degree split point is self-centering, eliminating the need for a center punch and reducing walking on entry. With a total length of 12 inches and a spiral flute configuration, it channels chips out efficiently during extended-reach drilling. Licensed machinists, aircraft maintenance technicians, and metalworking tradespeople are the primary installers of this bit.\u003c\/p\u003e\n\u003cp\u003eThis aircraft extension drill bit is suited for production and maintenance drilling in aerospace, industrial, and structural metalworking environments where standard-length bits cannot reach the work surface. The 12-inch overall length provides clearance for drilling through deep assemblies, flanged structures, or obstructed panels. The straight cylindrical shank fits standard drill chucks without an adapter. Its general-purpose performance rating and NAS 907 compliance make it a dependable choice across a range of ferrous and non-ferrous metals.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction with straw finish for improved heat resistance and tool longevity\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with self-centering geometry reduces walking on hard surfaces\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length for extended-reach and deep-access drilling\u003c\/li\u003e\n  \u003cli\u003e2-5\/16-inch spiral flute for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration reduces thrust and improves cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 standard for aircraft extension drill bits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style aircraft extension drill bit in wire gauge size 12 (0.1890 inches decimal equivalent) for use with standard drill chucks accepting a 0.1890-inch straight cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, aircraft maintenance technicians, or qualified metalworkers using a drill press, hand drill, or pneumatic drill with a properly sized chuck. Secure the workpiece before drilling and confirm chuck tightness to prevent slippage during operation. Cutting fluid or coolant is recommended when drilling hard metals to preserve the cutting edge and manage heat buildup. Inspect the bit for wear or chipping before each use and replace if the cutting edges are degraded.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1890 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.3125 inches (2-5\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1890 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C.E07.0480\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51752158101810,"sku":"C.E07.0480","price":35.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5427ffd62243fa29f5057ca882739856.jpg?v=1788926241","url":"https:\/\/voomisupply.com\/products\/hertel-c-e07-0480-aircraft-extension-drill-bit-12","provider":"Voomi Supply","version":"1.0","type":"link"}