{"product_id":"precision-twist-drill-5996072-cobalt-drill-bit-wire-37","title":"Precision Twist Drill 5996072 Cobalt Drill Bit Wire 37","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5996072 is a cobalt aircraft extension drill bit designed for demanding drilling applications in hard and abrasive materials. Built to Series CO501-6 specifications, it carries a wire gauge size of 37, equivalent to 0.104 inches in diameter. The 135-degree split point is self-centering and web-thinned, reducing walking on entry and lowering thrust requirements at the start of the cut. The straw finish indicates the cobalt steel was heat-treated for added surface hardness. At 6 inches overall length with a 1.4375-inch spiral flute, this bit gives extended reach into confined spaces. Licensed HVAC, maintenance, and fabrication tradespeople use extension drill bits like this when standard-length bits cannot access the work zone.\u003c\/p\u003e\u003cp\u003eThis bit is suited for production and maintenance drilling in metals including stainless steel, titanium, high-nickel alloys, and hardened steels where standard high-speed steel bits wear prematurely. The aircraft-extension geometry provides the extra reach needed in aerospace, HVAC ductwork, structural steel, and general metalworking applications. The right-hand cutting spiral and cylindrical straight shank allow use in standard drill chucks without adapters. Compliance with NAS 907 Type J confirms the geometry and tolerances meet aerospace-grade standards for extension drills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire size 37 (0.104 inches) cobalt steel construction for heat and wear resistance in hard metals\u003c\/li\u003e\n\u003cli\u003e135-degree split point with web thinning for self-centering entry and reduced feed pressure\u003c\/li\u003e\n\u003cli\u003e6-inch overall length with 1.4375-inch flute for extended reach into confined or deep work areas\u003c\/li\u003e\n\u003cli\u003eStraw finish indicating heat-treated cobalt for added surface hardness\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute with tapered web configuration for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 Type J aerospace extension drill standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and general-purpose extension drill bit for use in any standard drill chuck or drill press accepting a 0.104-inch straight cylindrical shank, consistent with Series CO501-6 aircraft extension drill applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eExtension drill bits are typically installed and operated by machinists, maintenance technicians, and HVAC or structural tradespeople using a standard keyed or keyless chuck. Ensure the work piece is securely clamped before drilling to prevent bit walking or breakage on entry. Use appropriate cutting fluid for ferrous and hard alloy metals to extend bit life and manage heat buildup. Inspect the split point for chipping before each use, as cobalt bits can fracture under lateral stress if the point is damaged.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 37\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.104 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: 1.4375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.104 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\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\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eSelf-Centering\u003c\/strong\u003e: Yes\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\u003eSeries\u003c\/strong\u003e: CO501-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04167 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: 5996072\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51715340697906,"sku":"5996072","price":16.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a3e48cb1baf3e332194f6fb8f7c2a57_dcdd3dfd-48ca-4763-9bce-9801169a50cc.jpg?v=1788512330","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5996072-cobalt-drill-bit-wire-37","provider":"Voomi Supply","version":"1.0","type":"link"}