{"product_id":"chicago-latrobe-55438-reduced-shank-drill-bit-19-32-in-hss","title":"Chicago-latrobe 55438 Reduced Shank Drill Bit 19\/32 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 55438 is a reduced shank twist drill bit designed for general-purpose portable drilling in metal, wood, and cast iron. The bit carries a 19\/32-inch (0.5938 inches) cutting diameter with a reduced 1\/2-inch straight-cylindrical shank, allowing it to seat in standard 1\/2-inch chucks even though the cutting diameter exceeds that size. Ground from high speed steel (HSS) with a coated finish for added wear resistance, the 55438 features a 118-degree standard point angle and a right-hand spiral flute geometry suited to a wide range of workpiece materials. It belongs to the Chicago-Latrobe Series 190 line and is typically installed by machinists, maintenance mechanics, ironworkers, and general contractors.\u003c\/p\u003e\n\u003cp\u003eThe 55438 is built for portable drilling applications across residential and light industrial settings. Its reduced shank design makes it practical when larger-diameter drilling is needed without swapping to a larger chuck. Suitable workpiece materials include wood, alloy steel, carbon steel, and cast iron. The two-flute regular spiral configuration clears chips efficiently during through-hole and blind-hole operations. With a 6-inch overall length and 3-1\/8-inch flute length, the bit reaches deeper setups while maintaining rigidity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReduced shank design: 19\/32-inch cutting diameter fits a standard 1\/2-inch chuck\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction for durability across steel, cast iron, and wood\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle for general-purpose drilling\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral two-flute geometry for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life and reduces friction at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance held to +0.0000 to -0.0012 inches for consistent hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for Series 190 reduced shank drill bits used in 1\/2-inch chuck portable drills and drill presses across general-purpose metalworking and woodworking applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, maintenance technicians, or experienced tradespeople using a drill press or portable drill with a 1\/2-inch keyed or keyless chuck. Secure the shank fully in the chuck before operation and confirm the chuck is tightened evenly. No coolant is specified for this bit; follow shop safety protocols regarding eye protection and workpiece clamping. Inspect the cutting edges before use and replace the bit if chipping or excessive wear is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 19\/32 inches (0.5938 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.25 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\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0012 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Wood\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Materials\u003c\/strong\u003e: Alloy Steel, Carbon Steel, Cast Iron, Wood\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Portable Drilling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 190\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.31 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: 55438\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51748735549746,"sku":"55438","price":45.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5e7107a9f9a2634d67bce3cba52c720d.jpg?v=1788897510","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-55438-reduced-shank-drill-bit-19-32-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}