{"product_id":"precision-twist-drill-5996018-cobalt-aircraft-drill-bit","title":"Precision Twist Drill 5996018 Cobalt Aircraft Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996018 is a cobalt aircraft extension drill bit designed for high-performance drilling in tough materials including stainless steel, heat-resistant alloys, and hardened metals. It carries a 135-degree split point geometry that is self-centering, reducing the need for a center punch and minimizing walking on entry. The straw finish indicates controlled heat treatment applied during manufacturing. With a wire gauge size of 26 and a decimal diameter of 0.147 inches, this bit fits precision hole applications where tight tolerances matter. Licensed HVAC, mechanical, and industrial tradespeople working with sheet metal, aircraft-grade substrates, or structural components will find this bit suited to demanding production and field work.\u003c\/p\u003e\u003cp\u003eThis drill bit is built for use in aircraft, aerospace, and general industrial applications where extended reach and precision are required. The 1.875-inch flute length paired with a 6-inch overall length gives the bit reach into recessed or deep-clearance areas. The straight-cylindrical shank at 0.147 inches diameter seats securely in standard drill chucks. Right-hand cutting direction and a two-flute spiral configuration support efficient chip evacuation in both through-hole and blind-hole scenarios. It is rated for general-purpose use under NAS 907 Type J standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material 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 entry walking without a center punch\u003c\/li\u003e\n\u003cli\u003eStraw finish indicates heat-treated cobalt construction for extended tool life\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web configuration reduces thrust and improves chip clearance\u003c\/li\u003e\n\u003cli\u003e6-inch overall length with 1.875-inch flute length for extended-reach applications\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 Type J standards for aircraft and industrial use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and general-purpose drill bit for use in standard drill chucks accepting a 0.147-inch straight-cylindrical shank, suitable for aircraft extension drilling applications in industrial and mechanical trade environments.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists, sheet metal workers, or mechanical tradespeople familiar with proper drilling techniques. Secure the workpiece before drilling and confirm the drill chuck is tightened to the shank before operation. Use appropriate cutting fluid for hard metals to manage heat buildup and extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or wear is observed.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 26\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.147 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: 1.875 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.147 inches\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\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\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\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\u003eTool Performance\u003c\/strong\u003e: General Purpose\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: 5996018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51699822756146,"sku":"5996018","price":17.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a3e48cb1baf3e332194f6fb8f7c2a57_1f5f666f-41fd-4c49-b637-495d44e596e2.jpg?v=1788381582","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996018-cobalt-aircraft-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}