{"product_id":"9-64-x-12-hss-aircraft-extension-drill-bit-d-aa-c_d-aa-cx129-64","title":"9\/64\" X 12\" Aircraft Extension Drill Bit | HSS | D\/AA\/CX129\/64","description":"\u003cdiv\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 9\/64 in (0.1406 in \/ 3.57 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOverall length:\u003c\/strong\u003e 12 in (304.8 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct configuration:\u003c\/strong\u003e 1 piece\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoint geometry:\u003c\/strong\u003e D\/AA\/C\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExtended reach:\u003c\/strong\u003e 12\" overall length enables deep-hole drilling in recessed or hard-to-access areas.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHSS construction:\u003c\/strong\u003e Durability and heat tolerance when drilling metal components common in airframes and assemblies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExtension design:\u003c\/strong\u003e Helps maintain straight holes and reduces deflection during deep drilling tasks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecision-ground flute geometry:\u003c\/strong\u003e Smoother cutting and consistent hole quality.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Single-piece, 1-count packaging for professional maintenance and fabrication workflows.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUsage guidance:\u003c\/strong\u003e Best paired with appropriate feeds and speeds to maximize tool life and hole quality in aluminum alloys and other metals.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication context:\u003c\/strong\u003e Suitable for metalworking tasks in aerospace, automotive, and fabrication where deep, precise holes are required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePhysical\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 9\/64\" (0.1406\" \/ 3.57 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 12\" (304.8 mm)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Not specified\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank\/geometry details:\u003c\/strong\u003e Not specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":52312490508567,"sku":"D\/AA\/CX129\/64","price":5.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/d-aa-cx121-16_65279a17-74be-4262-8246-57fe99a9de92.jpg?v=1771708405","url":"https:\/\/mutualscrew.com\/products\/9-64-x-12-hss-aircraft-extension-drill-bit-d-aa-c_d-aa-cx129-64","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}