{"product_id":"chicago-latrobe-54039-cobalt-jobber-drill-bit-wire-29","title":"Chicago-latrobe 54039 Cobalt Jobber Drill Bit Wire 29","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 54039 is a cobalt jobber length drill bit designed for heavy-duty metal drilling applications. It carries a wire gauge size of 29, equivalent to 0.1360 inches in decimal diameter, and features a 135-degree split point for fast, self-centering starts with minimal walking. The M42 cobalt high-speed steel construction is finished with a Titanium Nitride (TiN) coating to extend tool life and reduce friction in tough materials. The two-flute spiral design with a web-thinned, tapered web improves chip evacuation and reduces thrust. Overall length is 2.875 inches with a flute length of 1.75 inches.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is built for cutting stainless steel and other hard ferrous metals where standard HSS bits fail prematurely. It is suited for production and maintenance environments in industrial, mechanical, and trade settings. The straight-cylindrical shank seats securely in standard three-jaw chucks and quick-change systems. Licensed HVAC, plumbing, and electrical installers working with stainless enclosures, unistrut, or structural steel will find the TiN coating and cobalt substrate handle repeated high-heat drilling cycles that burn out conventional bits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt high-speed steel construction rated for heavy-duty, high-heat drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point with web thinning for self-centering starts and reduced thrust load\u003c\/li\u003e\n  \u003cli\u003eTitanium Nitride (TiN) coating reduces friction and extends cutting edge life\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute promotes efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 0.1360 inches diameter fits standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 and NAS 907 Type J standards for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-length replacement or production-use bit for applications requiring a wire size 29 (0.1360 inch) diameter drill in stainless steel and steel workpieces. Compatible with any standard drill press, hand drill, or CNC spindle accepting a straight-cylindrical shank of 0.1360 inches.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the straight shank firmly in the chuck before operation and verify runout before drilling into hardened or stainless materials. Use appropriate cutting fluid or lubricant when drilling stainless steel to reduce heat buildup and prevent work hardening at the bore entrance. Wear appropriate eye and hand protection per shop safety standards. Inspect the cutting edges for wear after extended use in abrasive or high-alloy materials, as TiN coating wear is a reliable indicator of end-of-life for the substrate.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 29\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.1360 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42 Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.75 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: 0.1360 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.1250 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0007 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 338, NAS 907 Type J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2550\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy Duty\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: CHICAGO-LATROBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 54039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51727198716210,"sku":"54039","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5c98d1bfb282e56f9be5fc809eeb10d6.jpg?v=1788674613","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-54039-cobalt-jobber-drill-bit-wire-29","provider":"Voomi Supply","version":"1.0","type":"link"}