{"product_id":"precision-twist-drill-5996119-cobalt-aircraft-drill-bit","title":"Precision Twist Drill 5996119 Cobalt Aircraft Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996119 is a cobalt aircraft extension drill bit designed for drilling in hard metals, high-strength alloys, and tough aerospace-grade materials. It carries a wire gauge size of 5, which corresponds to a decimal diameter of 0.2055 inches. The 135-degree split point is self-centering and web-thinned, reducing the need for a center punch and lowering thrust during entry. The straw finish indicates heat treatment consistent with cobalt tooling. The straight-cylindrical shank measures 0.2055 inches in diameter and seats securely in standard drill chucks. This bit is part of the Series CO501-6 extended-length line and is suited for machinists, aircraft maintenance technicians, and metalworking tradespeople.\u003c\/p\u003e\u003cp\u003eThis drill bit is built for applications requiring extended reach beyond what a jobber-length bit can provide. The 2.5-inch flute length paired with a 6-inch overall length makes it well-suited for drilling through structural panels, tubing, and stacked materials where access is restricted. The right-hand cutting direction and spiral flute geometry provide efficient chip evacuation during continuous drilling. General-purpose cobalt construction handles both ferrous and non-ferrous materials, making it a versatile choice for sheet metal work, MRO operations, and fabrication tasks that demand dimensional accuracy.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material for increased hardness and heat resistance compared to standard HSS\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning for self-centering entry and reduced thrust\u003c\/li\u003e\n\u003cli\u003eExtended 6-inch overall length with 2.5-inch flute length for deep or restricted-access drilling\u003c\/li\u003e\n\u003cli\u003eStraw finish indicating cobalt heat treatment and surface hardness\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 0.2055 inches for compatibility with standard drill chucks\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 Type J standards for aircraft-grade tooling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and general-use cobalt aircraft extension drill bit for applications conforming to NAS 907 Type J standards. Compatible with standard drill chucks accepting a 0.2055-inch straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or aircraft maintenance technicians familiar with metal drilling procedures. Secure the shank fully in a properly rated drill chuck before operation, and ensure the workpiece is firmly clamped to prevent movement. Apply appropriate cutting fluid for the base material to extend tool life and maintain hole quality. Operate at feed rates and speeds appropriate for cobalt tooling in the target material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.2055 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.5 inches\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: 0.2055 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\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eSeries\u003c\/strong\u003e: CO501-6\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\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 5996119\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51720773632306,"sku":"5996119","price":22.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a3e48cb1baf3e332194f6fb8f7c2a57_24f447d9-5869-4d10-904e-2a265137fe7d.jpg?v=1788568966","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996119-cobalt-aircraft-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}