{"product_id":"chicago-latrobe-46749-cobalt-jobber-drill-bit-wire-79","title":"Chicago-latrobe 46749 Cobalt Jobber Drill Bit Wire 79","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 46749 is a cobalt jobber length drill bit designed for high-performance drilling in hard and abrasive materials. It carries a wire gauge size of 79, with a decimal diameter of 0.0145 inches and a 135-degree split-point tip that reduces walking and improves hole entry accuracy. The gold oxide coating adds surface hardness and heat resistance. At 0.75 inches overall length with a 0.125-inch flute length, this is a precision small-diameter bit suited for tight-tolerance applications. It is installed and used by machinists, aerospace technicians, and trade professionals working in metal fabrication and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for use on titanium as its primary workpiece material, making it well-suited for aerospace, medical, and industrial maintenance applications where high-strength alloys are common. The Series 550 designation, M42 cobalt material grade, and compliance with DIN 338 and NAS 907 Type J standards indicate this bit is built for heavy-duty, precision drilling where standard high-speed steel bits would dull prematurely. It is sold individually but requires a minimum order of 12 units per order.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt material grade for superior heat and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003e135-degree standard point angle reduces bit walking on entry without a center punch\u003c\/li\u003e\n  \u003cli\u003eGold oxide coating provides added surface hardness and lubricity\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web construction reduces thrust and improves chip evacuation\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for standard drilling operations\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 and NAS 907 Type J standards for dimensional and performance consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for drilling titanium as the primary workpiece material. Suitable for use in standard drill chucks and CNC spindles accepting a straight cylindrical shank of 0.0145 inches. Conforms to NAS 907 Type J and DIN 338 specifications for jobber length drill bits in the 0.0000 to 0.0500 inch size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit should be installed by a qualified machinist or trade professional familiar with small-diameter precision drilling. Secure the straight cylindrical shank firmly in a compatible drill chuck before operation and verify runout before drilling into workpiece material. When drilling titanium or other hard alloys, use appropriate cutting fluid and controlled feed pressure to prevent bit breakage. At this diameter, bits are fragile and must not be subjected to side loading or excessive feed force.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 550\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 79\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0145 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42 Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\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\u003eFinish\/Coating\u003c\/strong\u003e: Gold Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0145 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy Duty\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\u003eWeight\u003c\/strong\u003e: 0.0006 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: CHICAGO-LATROBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 46749\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51729586389298,"sku":"46749","price":109.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e18f3a73fcc1e869d3fccf79cdc8be4_1aaea901-9705-4ed9-8c15-71f2f6395f04.jpg?v=1788706433","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-46749-cobalt-jobber-drill-bit-wire-79","provider":"Voomi Supply","version":"1.0","type":"link"}