{"product_id":"chicago-latrobe-46464-cobalt-jobber-drill-bit-4-mm","title":"Chicago-latrobe 46464 Cobalt Jobber Drill Bit 4 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 46464 is a cobalt jobber length drill bit engineered for high-performance drilling in hard and abrasive materials. Built to Series 550 standards, it features a 135-degree split point that reduces walking and requires no center punch on most surfaces. The gold finish indicates a cobalt steel construction, rated for heavy-duty use. At 4 mm in diameter with a 2.9528-inch overall length and a 1.6929-inch spiral flute, this bit delivers consistent chip evacuation in demanding applications. It meets DIN 338 and NAS 907 Type J specifications, making it suitable for aerospace and industrial trade use.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for right-hand cutting with a regular spiral flute pattern and a web-thinned, tapered web configuration that reduces thrust load during entry. Its primary rated workpiece material is titanium, though cobalt construction also handles stainless steel, heat-resistant alloys, and other hard metals common in industrial and aerospace maintenance environments. The straight-cylindrical shank fits standard drill chucks without adapters. This bit is typically used by machinists, maintenance technicians, and aerospace MRO professionals working with difficult-to-machine materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt steel construction with gold finish for heat resistance and extended tool life in hard materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces bit walking and lowers entry thrust\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web reduces cutting resistance at the tip\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 and NAS 907 Type J standards for aerospace and industrial applications\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks without modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for primary use in titanium and other hard, heat-resistant alloys. Designed to NAS 907 Type J and DIN 338 specifications for use in aerospace MRO, industrial manufacturing, and heavy-duty maintenance drilling applications where standard high-speed steel bits are insufficient.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a standard drill chuck sized for a 4 mm straight-cylindrical shank and confirm secure seating before operation. Disconnect and lock out all power to drilling equipment before changing bits. Use appropriate cutting fluid for titanium and hard alloy work to manage heat buildup and extend bit life. This bit is intended for use by qualified machinists or maintenance technicians familiar with feeds and speeds for cobalt tooling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4 mm (0.1575 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 75 mm (2.9528 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 43 mm (1.6929 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4 mm (0.1575 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 32 mm (1.2598 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\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0007 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 550\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.001 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: 46464\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51731806912818,"sku":"46464","price":62.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e18f3a73fcc1e869d3fccf79cdc8be4_ee1ef7cd-74e5-4dca-918c-659b3f17891b.jpg?v=1788735147","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-46464-cobalt-jobber-drill-bit-4-mm","provider":"Voomi Supply","version":"1.0","type":"link"}