{"product_id":"hertel-c-e05-0561-aircraft-extension-drill-bit-135-pt-hss","title":"Hertel C.E05.0561 Aircraft Extension Drill Bit 135 Pt Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL C.E05.0561 is a Number 2 wire-size aircraft extension drill bit engineered for deep-reach drilling applications where a standard-length bit cannot access the workpoint. Built from high-speed steel with an oxide finish, it measures 12 inches in overall length and carries a 135-degree split point that is self-centering and web-thinned for reduced thrust on entry. The straight cylindrical shank and right-hand spiral flute geometry deliver clean, consistent chip evacuation. This bit is manufactured to NAS 907 standards and suits general-purpose metal drilling in aerospace, automotive, and structural fabrication environments.\u003c\/p\u003e\u003cp\u003eThis bit is used when drilling in confined or deep-cavity locations that require extended reach beyond standard jobber-length tooling. Typical applications include aircraft structural assemblies, sheet metal stacks, and frame drilling where access is restricted by surrounding structure. The 2.625-inch flute length provides adequate chip clearance even at depth. Machinists, aircraft maintenance technicians, and fabricators working in aerospace MRO or production environments will find this bit appropriate for standard drilled-hole work in steel, aluminum, and similar materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNumber 2 wire size (0.2210 inches decimal) for precision-diameter holes\u003c\/li\u003e\n\u003cli\u003e12-inch overall length for extended-reach drilling in deep or obstructed locations\u003c\/li\u003e\n\u003cli\u003e135-degree split point with self-centering geometry reduces walking and entry thrust\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web configuration lowers cutting resistance\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction with oxide finish for general-purpose metal drilling\u003c\/li\u003e\n\u003cli\u003eManufactured to NAS 907 standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit suitable for use in standard straight-shank drill chucks across hand drills, right-angle drills, and drill presses requiring a Number 2 wire-size (0.2210 inch) bit with extended reach.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this bit should be performed by machinists, aircraft maintenance technicians, or qualified fabricators familiar with metal drilling operations. Secure the straight cylindrical shank fully in a properly sized drill chuck before operation and verify chuck tightness before applying cutting pressure. Follow applicable workplace safety standards and wear appropriate eye protection when drilling. Inspect the cutting edges for wear or damage before each use and replace the bit if the point shows chipping or excessive dulling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: Number 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.2210 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: 2.625 inches\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\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2210 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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 Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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.E05.0561\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727723954482,"sku":"C.E05.0561","price":23.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ca5bb2598c62be3df8a3f15f6d813c70.jpg?v=1788681293","url":"https:\/\/voomisupply.com\/products\/hertel-c-e05-0561-aircraft-extension-drill-bit-135-pt-hss","provider":"Voomi Supply","version":"1.0","type":"link"}