{"product_id":"chicago-latrobe-48807-screw-machine-drill-bit-0-261-in-hss","title":"Chicago-latrobe 48807 Screw Machine Drill Bit 0.261 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 48807 is a screw machine length drill bit designed for fast, accurate drilling in production and general-purpose machining environments. Built from high speed steel (HSS) with a bright\/uncoated finish, it measures 0.261 inches in diameter and carries a 118-degree standard point angle. At an overall length of 2-5\/8 inches and a flute length of 1-7\/16 inches, this stub-length format delivers added rigidity compared to jobber-length bits, reducing deflection during entry. The parallel web and web-thinned geometry improve chip clearance and reduce thrust force at the point. Two spiral flutes with a regular spiral pattern handle chip evacuation efficiently across a range of materials.\u003c\/p\u003e\n\u003cp\u003eThis Series 157 bit is suited for screw machine operations, CNC drilling centers, drill presses, and manual machining setups where a shorter, stiffer bit is preferred. Primary workpiece materials include cast iron, non-ferrous metals, and steel, making it a solid choice for production shops, maintenance machinists, and fabricators. The straight-cylindrical shank seats in standard drill chucks without modification, and the right-hand cut direction is compatible with conventional spindle rotation on all standard machine tools.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.261 inch (Letter G) diameter with a tight tolerance of +0.0000 to -0.0010 inches for precise hole sizing\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned, parallel web geometry for reduced thrust and cleaner starts\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across cast iron, steel, and non-ferrous metal workpieces\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length at 2-5\/8 inches overall adds rigidity and reduces deflection versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish — compatible with cutting fluids and suitable for regrinding\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, two-flute spiral design for efficient chip removal in through-hole and blind-hole drilling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose screw machine length drill bit suitable for use in standard drill chucks accepting straight-cylindrical shanks across drill presses, CNC machining centers, and screw machine setups. Meets ISO standards for tooling dimensions.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the straight-cylindrical shank firmly in a drill chuck or collet before operation, and verify that the chuck is fully tightened and the spindle is locked before making any adjustments. Always bring the spindle to a complete stop before changing bits or clearing chips. Apply cutting fluid appropriate to the workpiece material to extend tool life and improve hole finish. Inspect the cutting edges before each use and replace or regrind the bit at the first sign of chipping or dulling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.261 inches (Letter G)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0010 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\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\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal, Steel\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: 157\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0304 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: 48807\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51730132795698,"sku":"48807","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d14e03f959bc31bb90f6935e6447aac1.jpg?v=1788712307","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-48807-screw-machine-drill-bit-0-261-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}