{"product_id":"chicago-latrobe-48204-screw-machine-drill-bit-1-16-in","title":"Chicago-latrobe 48204 Screw Machine Drill Bit 1\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 48204 is a screw machine length drill bit designed for heavy-duty drilling in cast iron and steel. Built from high speed steel (HSS) with a coated finish, it measures 1\/16 inch (0.0625 inches) in diameter and 1-5\/8 inches in overall length. The 135-degree split point reduces walking and improves hole entry without a center punch. A web-thinned, parallel web configuration lowers thrust and extends tool life in production environments. Licensed machinists, maintenance mechanics, and metal fabricators are the primary users of this bit.\u003c\/p\u003e\u003cp\u003eThis bit is suited for screw machine operations, short-hole drilling, and high-cycle production runs where a stubby, rigid tool is preferred over jobber-length bits. The reduced length minimizes deflection when drilling small-diameter holes in ferrous materials. Primary workpiece materials include cast iron and steel. Its straight-cylindrical shank fits standard drill chucks without adapters, making it compatible with drill presses, CNC machining centers, and handheld power drills used in tight-clearance applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirements\u003c\/li\u003e\n\u003cli\u003eWeb-thinned parallel web lowers cutting resistance and heat buildup\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length provides rigidity and minimizes deflection in small-diameter drilling\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with coated finish for extended tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute with right-hand cut for standard chip evacuation\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of +0.0000 to -0.0005 inches ensures close-tolerance hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling cast iron and steel workpieces; fits any standard drill chuck accepting a straight-cylindrical shank. Meets NAS 907 specification under NAS designation and is manufactured to ISO standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall in a properly rated drill chuck and verify chuck jaws are fully tightened before operation. Always wear appropriate eye protection and secure the workpiece before drilling. Disconnect or de-energize machinery before changing bits. Use appropriate cutting fluid for steel applications to manage heat and extend bit life.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1\/16 inch (0.0625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5\/8 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\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\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\u003c\/strong\u003e: Heavy-Duty\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.0000 to 0.1000 inches\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: 2159\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Number\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Designation\u003c\/strong\u003e: NAS\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: 0.1 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 48204\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51754850779442,"sku":"48204","price":66.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f39783ff92a9afa89e1e2088d36ca689.jpg?v=1788949210","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-48204-screw-machine-drill-bit-1-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}