{"product_id":"precision-twist-drill-5995767-cobalt-aircraft-drill-11-64","title":"Precision Twist Drill 5995767 Cobalt Aircraft Drill 11\/64","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5995767 is a cobalt aircraft extension drill bit designed for drilling in hard, abrasion-resistant materials where standard high-speed steel bits fall short. It measures 11\/64 inch (0.1719 inch) in diameter with a 2.125-inch flute length and a 12-inch overall length, giving technicians the reach needed for deep or obstructed holes. The 135-degree split point is self-centering, which eliminates the need for a center punch and reduces walking on hard or curved surfaces. A straw finish indicates the cobalt heat treatment and provides light corrosion resistance. This drill is part of the Series CO500-12 lineup and is suited for use by machinists, aircraft maintenance technicians, and industrial tradespeople.\u003c\/p\u003e\n\u003cp\u003eThe 5995767 is engineered for general-purpose drilling in aerospace-grade alloys, stainless steel, cast iron, and other hard metals. Its 12-inch extension length makes it practical for reaching into tight structural assemblies, body panels, or framing members where a standard-length bit cannot reach. The right-hand spiral flute design efficiently clears chips during drilling. It is commonly used in aircraft maintenance, shipbuilding, heavy equipment fabrication, and similar trades requiring extended reach in hard materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction provides heat and wear resistance for drilling hard metals and alloys\u003c\/li\u003e\n  \u003cli\u003e135-degree split point is self-centering and reduces bit walking on hard surfaces\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length offers extended reach for deep or obstructed drilling applications\u003c\/li\u003e\n  \u003cli\u003eStraw finish indicates cobalt heat treatment and adds light corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration reduces thrust and improves cutting efficiency\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type J standards for aircraft-grade tooling\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 Series CO500-12, suitable for use in standard drill chucks accepting straight-cylindrical shanks at 11\/64 inch (0.1719 inch) diameter. Conforms to NAS 907 Type J standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis drill bit is installed by machinists and maintenance technicians using standard keyed or keyless drill chucks rated for the 11\/64-inch straight shank. Ensure the workpiece is securely clamped before drilling. Use appropriate cutting fluid when drilling stainless steel or high-strength alloys to extend tool life and manage heat buildup. Inspect the split point for wear or chipping before each use, as a damaged point will reduce self-centering performance and hole accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 11\/64 inch (0.1719 inch)\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: 2.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 11\/64 inch (0.1719 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CO500-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907 Type J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5995767\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51717078253874,"sku":"5995767","price":37.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e3b5938b220f02bcc3d165c052aa7823_658f3f73-7aba-4008-ad5b-1292417956ee.jpg?v=1788535382","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5995767-cobalt-aircraft-drill-11-64","provider":"Voomi Supply","version":"1.0","type":"link"}