{"product_id":"triumph-twist-drill-011529-cobalt-drill-bit-29-64-in","title":"Triumph Twist Drill 011529 Cobalt Drill Bit 29\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TRIUMPH TWIST DRILL 011529 is a cobalt jobber length drill bit designed for demanding metal drilling applications in industrial and trade environments. Built from cobalt steel with a gold oxide coating, this bit runs at 29\/64 inch (0.4531 inch) diameter with a 135-degree split point that self-centers on contact and reduces walking without a center punch. The spiral flute geometry and web-thinned, tapered web configuration promote efficient chip evacuation. Machinists, maintenance technicians, and fabricators working with alloy steel and hard metals will find this bit suited to heavy-duty production drilling.\u003c\/p\u003e\n\u003cp\u003eThe 011529 is engineered for right-hand cutting in alloy and alloy steel workpieces. At 5-5\/8 inches overall length with a 4-3\/16 inch flute length and a straight-cylindrical shank measuring 29\/64 inch, it fits standard drill chucks without modification. The Series T1C designation places it in a high-performance cobalt line intended for high-heat applications where high-speed steel bits lose their edge. Typical use cases include structural fabrication shops, maintenance and repair operations, and production machining where consistent hole quality in hard materials is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction with gold oxide coating for extended tool life in hard metals\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with self-centering geometry reduces drill walking\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web lowers thrust requirements and improves chip flow\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with regular helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard three-jaw drill chucks\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty grade rated for alloy and alloy steel workpieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks accepting a 29\/64 inch straight-cylindrical shank. Optimized for drilling alloy steel and alloy workpiece materials in high-performance applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a drill press, milling machine, or hand drill with a chuck rated for the 29\/64 inch shank diameter. Secure the shank fully in the chuck and verify runout before beginning a cut. Use appropriate cutting fluid for alloy steel to manage heat buildup and extend bit life. Wear eye protection and secure the workpiece before drilling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 29\/64 inch (0.4531 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4-3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 29\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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 (Regular Helix)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Gold Oxide\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 Application\u003c\/strong\u003e: Self-Centering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T1C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.11 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: TRIUMPH TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 011529\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRIUMPH TWIST DRILL","offers":[{"title":"Default Title","offer_id":67917110509874,"sku":"011529","price":34.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/abc26c5f7fcfb0142781ed5d1fab9bc0.jpg?v=1791261416","url":"https:\/\/voomisupply.com\/products\/triumph-twist-drill-011529-cobalt-drill-bit-29-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}