{"product_id":"chicago-latrobe-54040-cobalt-jobber-drill-bit-size-30","title":"Chicago-latrobe 54040 Cobalt Jobber Drill Bit Size 30","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 54040 is a cobalt jobber-length drill bit designed for high-performance drilling in hard and abrasive materials. Built to wire gauge size 30, it measures 0.1285 inches in diameter with a 135-degree split point that reduces walking and improves hole entry on hard surfaces. The M42 cobalt steel construction and titanium nitride (TiN) coating extend tool life in demanding applications. With a straight-cylindrical shank and regular spiral flute, this bit is compatible with standard drill chucks. It is sized for precision work where tight diameter tolerances are required, holding -0.0007 to 0.0000 inches from nominal.\u003c\/p\u003e\n\u003cp\u003eThis bit is built for drilling stainless steel and alloy steels where standard high-speed steel bits fail prematurely. The 2-flute spiral configuration promotes chip evacuation in deep-hole drilling scenarios. The web-thinned, tapered web design reduces thrust requirements and cutting torque. It suits tool-and-die shops, MRO environments, HVAC fabrication, and mechanical contractors who regularly drill through stainless fastener plates, structural steel, and heavy-gauge sheet metal. Series 2550 meets DIN 338 and NAS 907 Type J standards, making it appropriate for aerospace and precision industrial work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt steel construction for heat and wear resistance in hard metals\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces center drift and lowers entry force\u003c\/li\u003e\n  \u003cli\u003eTitanium nitride (TiN) coating extends cutting edge life\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web reduces required thrust force\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, 2-flute spiral promotes chip clearance\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 and NAS 907 Type J standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling stainless steel and steel workpieces. Straight-cylindrical shank fits standard keyed and keyless drill chucks. Conforms to NAS 907 Type J and DIN 338 specifications for jobber-length cobalt drill bits.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eUse in a drill press, hand drill, or CNC spindle equipped with a chuck sized for a 0.1285-inch straight shank. Apply consistent cutting fluid or coolant when drilling stainless steel to manage heat buildup, even though this bit does not have internal coolant-through capability. Reduce feed pressure as the bit breaks through to avoid grabbing. Inspect the cutting edges before each use — cobalt bits can chip if used on hardened or case-hardened surfaces beyond their rated material grade.\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: 30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.1285 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 Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42 Cobalt 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\u003eOverall Length\u003c\/strong\u003e: 2.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1285 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\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, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 2550\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\u003eGrade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 54040\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51728792879410,"sku":"54040","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/97da6b280b50e4de04f3f4641aa29a10.jpg?v=1788696255","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-54040-cobalt-jobber-drill-bit-size-30","provider":"Voomi Supply","version":"1.0","type":"link"}