{"product_id":"29-64-x-12-hss-aircraft-extension-drill-bit-d-aa-c_d-aa-cx1229-64","title":"29\/64\" X 12\" Aircraft Extension Drill Bit | HSS | D\/AA\/CX1229\/64","description":"\u003cdiv\u003e\n\u003cp\u003eThis [1 PC] 29\/64\" X 12\" HSS Aircraft Extension Drill Bit (D\/AA\/C) is engineered for metalworking tasks that require access to deep or recessed holes. The extended-reach design integrates with standard drills to maintain alignment through tight assemblies and constrained spaces.\u003c\/p\u003e \u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eQuantity: 1 piece\u003c\/li\u003e \u003cli\u003eDiameter: 29\/64 in\u003c\/li\u003e \u003cli\u003eLength (overall): 12 in\u003c\/li\u003e \u003cli\u003eMaterial: High-Speed Steel (HSS)\u003c\/li\u003e \u003cli\u003eDesignation: D\/AA\/C\u003c\/li\u003e \u003cli\u003eType: Aircraft extension drill bit\u003c\/li\u003e \u003cli\u003eApplication focus: metal drilling with extended reach\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAircraft extension design enables extended reach to deep or recessed holes, supporting drilling in restricted or awkward workspaces.\u003c\/li\u003e \u003cli\u003ePrecise 29\/64 in diameter supports tight tolerances in critical holes during metal fabrication and maintenance work.\u003c\/li\u003e \u003cli\u003eLong, single-piece construction reduces wobble and improves alignment, contributing to cleaner holes and less rework in metal projects.\u003c\/li\u003e \u003cli\u003eHigh-Speed Steel (HSS) construction provides durability and heat tolerance for drilling through common metals such as steel and aluminum.\u003c\/li\u003e \u003cli\u003e12-inch overall length allows access to holes behind fixtures, inside enclosures, or within machinery where standard bits can’t reach.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePhysical\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eOverall length: 12 inches\u003c\/li\u003e \u003cli\u003eDiameter: 29\/64 inches\u003c\/li\u003e \u003cli\u003eMaterial: High-Speed Steel (HSS)\u003c\/li\u003e \u003cli\u003eType: Aircraft Extension Drill Bit\u003c\/li\u003e \u003cli\u003eDesignation: D\/AA\/C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":52312491622679,"sku":"D\/AA\/CX1229\/64","price":20.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/1125\/5063\/files\/d-aa-cx121-16_cedbde73-1954-4f8a-9198-8227d28c3133.jpg?v=1771708459","url":"https:\/\/mutualscrew.com\/products\/29-64-x-12-hss-aircraft-extension-drill-bit-d-aa-c_d-aa-cx1229-64","provider":"Mutual Screw \u0026 Supply","version":"1.0","type":"link"}