{"product_id":"hertel-4140430-cobalt-jobber-drill-bit-no-51-wire","title":"Hertel 4140430 Cobalt Jobber Drill Bit No. 51 Wire","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 4140430 is a cobalt jobber-length drill bit designed for heavy-duty holemaking in hard and abrasive materials. It carries a No. 51 wire gauge size, corresponding to a decimal diameter of 0.0670 inches, and features a 135-degree split-point geometry for fast self-centering starts without a center punch. A TiAlN (titanium aluminum nitride) coating extends tool life by resisting heat buildup at high cutting speeds. Overall length is 2 inches with a 1-inch flute length. This is a right-hand cutting tool suited for use in drill presses, CNC machining centers, and handheld power drills on production or maintenance applications.\u003c\/p\u003e\n\u003cp\u003eThis bit is rated for holemaking in stainless steel, high-temperature alloys, cast iron, and other hard ferrous materials where standard high-speed steel bits wear prematurely. The heavy-duty cobalt grade makes it a common choice in industrial maintenance, fabrication shops, and mechanical contracting work where long run times and material hardness demand a more heat-resistant substrate. The consistent 0.0670-inch shank diameter matches the drill diameter for straightforward chuck mounting.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo. 51 wire size — 0.0670 inch decimal diameter for precision small-bore holemaking\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates walking on entry\u003c\/li\u003e\n  \u003cli\u003eCobalt construction provides superior heat and wear resistance versus standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating adds a thermal barrier for extended tool life at higher feed rates\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting, jobber-length series for general-purpose depth-to-diameter ratio\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty grade rated for hard ferrous and high-temperature alloy applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-length drill bit for use in any standard drill press, CNC machining center, or handheld power tool with a chuck capable of accepting a 0.0670-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove drill bits only with the machine fully powered down and the spindle at a complete stop. Secure the shank firmly in the chuck and verify concentricity before beginning a cut to avoid deflection on small-diameter bits. Use appropriate cutting fluid or coolant when drilling stainless steel or high-temperature alloys to maximize tool life; note that this bit does not support coolant-through operation. Follow applicable OSHA machine-guarding requirements and shop safety protocols when operating drilling equipment.\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: No. 51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0670 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\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\u003eCoating\u003c\/strong\u003e: TiAlN\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\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0670 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Jobber\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: 0.03 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4140430\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51753581674802,"sku":"4140430","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/03e08dd2362c08d50d00b8d433cd1a7c.jpg?v=1788938370","url":"https:\/\/voomisupply.com\/products\/hertel-4140430-cobalt-jobber-drill-bit-no-51-wire","provider":"Voomi Supply","version":"1.0","type":"link"}