{"product_id":"chicago-latrobe-50077-cobalt-drill-bit-35-64-inch-135-degree","title":"Chicago-latrobe 50077 Cobalt Drill Bit 35\/64 Inch 135 Degree","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 50077 is a cobalt jobber length drill bit designed for high-performance drilling in hard and abrasive materials. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit handles the elevated heat and cutting forces common when drilling titanium, stainless steel, and other tough alloys. It measures 35\/64 inches in diameter with a 6-5\/8 inch overall length and a 4-13\/16 inch flute length. The 135-degree split point reduces walking on entry and lowers thrust requirements. A web-thinned, tapered web construction improves chip evacuation and cutting efficiency. This is a heavy-duty tool intended for use by machinists, tool-and-die professionals, and maintenance technicians working in demanding production or MRO environments.\u003c\/p\u003e\n\u003cp\u003eThe 50077 is built for drilling titanium and similarly difficult workpiece materials where standard HSS bits fail prematurely or overheat. The straight-cylindrical shank seats securely in standard drill chucks and CNC toolholders. The Series 550 designation places this bit in CHICAGO-LATROBE's heavy-duty cobalt line, which conforms to DIN 338 and NAS 907 Type J standards. Typical applications include aerospace component fabrication, industrial maintenance, and precision metalworking where consistent hole diameter tolerance is required. The diameter tolerance is held to -0.0012 to 0.0000 inches for close-tolerance hole quality.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt steel construction for heat resistance and extended tool life in hard materials\u003c\/li\u003e\n  \u003cli\u003eGold oxide coating reduces friction and improves lubricity during cutting\u003c\/li\u003e\n  \u003cli\u003e135-degree split point minimizes bit walking and reduces required thrust\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 338 and NAS 907 Type J standards for dimensional consistency\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and CNC toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003ePrimary workpiece material is titanium per NAS 907 specification. The straight-cylindrical shank fits standard drill chucks accepting a 35\/64 inch shank. Conforms to DIN 338 and NAS 907 Type J, making this bit a drop-in fit wherever those standards are called out.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove this drill bit with the machine powered down and locked out per applicable safety procedures. Secure the straight-cylindrical shank firmly in a properly sized drill chuck or collet before operation. When drilling titanium or other hard alloys, use appropriate cutting fluid to manage heat and extend tool life. Inspect the cutting edges and split point for wear or chipping before each use and replace the bit if edge integrity is compromised.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 35\/64 inches (0.5469 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4-13\/16 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\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 35\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.8125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: M42 Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Gold Oxide\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: -0.0012 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\u003eTool Performance Grade\u003c\/strong\u003e: Heavy Duty\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\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: 50077\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51738660733234,"sku":"50077","price":75.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e18f3a73fcc1e869d3fccf79cdc8be4_0dd6c4d7-8eeb-42dd-bf92-934d437a4b8f.jpg?v=1788802439","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-50077-cobalt-drill-bit-35-64-inch-135-degree","provider":"Voomi Supply","version":"1.0","type":"link"}