{"product_id":"chicago-latrobe-48232-screw-machine-drill-bit-0-5in-hss","title":"Chicago-latrobe 48232 Screw Machine Drill Bit 0.5in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 48232 is a heavy-duty screw machine length drill bit designed for high-production drilling in cast iron and steel. Built from high speed steel (HSS) with a coated finish, it carries a 135-degree split point that reduces walking and cuts through hard stock with less feed pressure. The parallel web and web-thinned geometry improve chip clearance and reduce torque demand at the spindle. At 3.75 inches overall length with a 2.25-inch flute, this stub-style bit fits standard drill chucks without overhang and handles interrupted cuts in tight setups. It is used by machinists, pipefitters, and general metalworkers running screw machines, drill presses, or hand-held power tools on production and maintenance work.\u003c\/p\u003e\n\u003cp\u003eThe 48232 is sized at 0.5 inches (1\/2 inch) diameter with a straight-cylindrical shank and a right-hand spiral flute. Primary target materials are cast iron and steel, making it suited for mechanical, HVAC, plumbing, and structural fabrication applications where consistent hole quality in metal is required. The tight diameter tolerance of plus 0.0000 to minus 0.0010 inches ensures clean, on-size holes that meet close-fit fastener and reamer-prep requirements. The Series 2159 meets NAS 907 and ISO standards, which is relevant for aerospace-adjacent and industrial maintenance shops that document tooling compliance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces walking on hard stock and lowers required feed pressure\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web design improves chip evacuation and reduces spindle torque\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for extended tool life in cast iron and steel\u003c\/li\u003e\n  \u003cli\u003eTight diameter tolerance of plus 0.0000 to minus 0.0010 inches for consistent hole sizing\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length at 3.75 inches overall reduces deflection in tight clearance setups\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 and ISO specifications for shops requiring documented tooling standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling cast iron and steel in screw machine, drill press, and hand-held power tool applications. Straight-cylindrical shank fits standard 1\/2-inch drill chucks and collet systems. Series 2159 geometry is intended for heavy-duty production and maintenance drilling where stub-length rigidity is required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or tradespeople familiar with metal-drilling operations. Secure the workpiece fully before drilling and verify chuck tightness before spindle engagement. Use appropriate cutting fluid or coolant for the target material to maintain edge life, as coolant-through is not available on this bit. Follow OSHA and shop-specific PPE requirements including eye protection and proper guarding on all rotating equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.25 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\u003eSpiral Type\u003c\/strong\u003e: Regular\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\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\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\u003c\/strong\u003e: Heavy-Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: plus 0.0000 to minus 0.0010 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\u003c\/strong\u003e: NAS 907 \/ ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.9 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: 48232\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51728141222194,"sku":"48232","price":33.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/04f48cd82c5ba51da5087d0d2bec8016.jpg?v=1788688671","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-48232-screw-machine-drill-bit-0-5in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}