{"product_id":"chicago-latrobe-50906-screw-machine-drill-bit-0-067-in","title":"Chicago-latrobe 50906 Screw Machine Drill Bit 0.067 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 50906 is a cobalt screw machine length drill bit engineered for heavy-duty drilling in ferrous and hard materials. Built from M42 cobalt high-speed steel, it delivers superior heat resistance compared to standard HSS tooling, making it well suited for extended production runs. The 135-degree split point reduces walking and axial thrust at entry, allowing the bit to self-center without a pilot hole in most setups. At 0.067 inches in diameter (Wire Size 51), the bit carries a tight diameter tolerance of plus 0.0000 to minus 0.0005 inches, supporting consistent hole geometry in precision applications. Machinists, tool and die workers, and maintenance mechanics are the primary users of this tooling.\u003c\/p\u003e\n\u003cp\u003eThe 50906 is designed for drilling cast iron and steel in screw machine, CNC lathe, drill press, and production machining environments. The stub-length body keeps tool overhang short, increasing rigidity and reducing deflection on small-diameter bores. The parallel web configuration and web-thinned geometry lower cutting resistance, which is useful when running multiple holes in high-volume operations. The straight-cylindrical shank fits standard drill chucks and collet systems without modification. This bit is sold individually but requires a minimum order quantity of 12 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for heat resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers thrust requirements at entry\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web geometry reduces cutting resistance during penetration\u003c\/li\u003e\n  \u003cli\u003eTight diameter tolerance of plus 0.0000 to minus 0.0005 inches for consistent hole sizing\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length increases rigidity and limits deflection on small-diameter work\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute configuration with 2 flutes for standard chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks and collet holders accepting straight-cylindrical shanks. Primary workpiece materials listed by the manufacturer are cast iron and steel. Conforms to ISO standards for drill bit geometry.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance professionals familiar with rotating tooling and machine operation. Secure the shank fully in the chuck or collet and verify concentricity before running. Power down and lock out the machine before changing tooling. Do not exceed the spindle speed and feed rate recommendations appropriate for the workpiece material and tool diameter.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.067 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-11\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 11\/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\u003eTool Material\u003c\/strong\u003e: M42 Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: Parallel, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: plus 0.0000 to minus 0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 559\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\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: 50906\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51734336831794,"sku":"50906","price":44.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5d92ffa42f8cc5bf33a2250f5ce0e7b_2c0d260e-48f7-4564-ad5c-3356e7474c28.jpg?v=1788762560","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-50906-screw-machine-drill-bit-0-067-in","provider":"Voomi Supply","version":"1.0","type":"link"}