{"product_id":"chicago-latrobe-52478-reduced-shank-drill-bit-1-7-32-in","title":"Chicago-latrobe 52478 Reduced Shank Drill Bit 1-7\/32 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 52478 is a reduced shank drill bit designed for portable drilling applications across a wide range of materials. It features a 1-7\/32 inch (1.2188 inch decimal) cutting diameter paired with a 1\/2 inch Weldon shank, allowing use in standard 1\/2 inch chucks even at larger bit diameters. The bit is manufactured from high speed steel and carries a coated finish for improved wear resistance. With a 118-degree split point and right-hand spiral flute geometry, it delivers consistent starts and clean penetration in both ferrous and non-ferrous stock. Licensed tradespeople and skilled machinists install this bit in portable drilling setups on the job site or at the bench.\u003c\/p\u003e\n\u003cp\u003eThe 52478 is suited for general-purpose drilling in wood, carbon steel, alloy steel, and cast iron. The reduced shank design makes it practical for portable drills with 1\/2 inch chuck capacity when larger-diameter holes are required. The 3-number flat Weldon shank prevents bit rotation under torque load, which is especially valuable during heavy-duty drilling in harder ferrous materials. At 6 inches overall length with a 3-1\/8 inch flute, it provides adequate depth capacity for most structural and fabrication drilling tasks encountered in field or shop conditions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1-7\/32 inch cutting diameter with a reduced 1\/2 inch Weldon shank fits standard portable drill chucks\u003c\/li\u003e\n  \u003cli\u003e118-degree split point for self-centering starts and reduced walking on flat or curved surfaces\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across wood, alloy steel, carbon steel, and cast iron\u003c\/li\u003e\n  \u003cli\u003e3-flat Weldon shank resists rotation under high torque loads\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends cutting edge life and reduces friction during drilling\u003c\/li\u003e\n  \u003cli\u003eRight-hand, regular spiral flute design efficiently clears chips during portable drilling operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose reduced shank drill bit compatible with portable drills and drill presses equipped with a 1\/2 inch chuck. Suitable for drilling wood, carbon steel, alloy steel, and cast iron workpieces. Part of the CHICAGO-LATROBE Series 190F line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, metalworkers, carpenters, or general tradespeople using portable drills or drill presses. Always power down and disconnect the drill before inserting or removing the bit. Secure the Weldon shank fully in the chuck, engaging all three flats to prevent slippage under load. Inspect the cutting edges for wear or damage before each use and replace the bit if chipping or dulling is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1-7\/32 inches (1.2188 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch (0.5000 inch decimal, 12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.2500 inches (57.15 mm)\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\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: Split\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\u003eDrill Length Type\u003c\/strong\u003e: Reduced Shank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0015 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Portable Drilling\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\u003eCoolant Required\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 190F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 52478\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51738525696306,"sku":"52478","price":141.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/320f6d0166daa58f78e8e962059ac72b.jpg?v=1788800602","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-52478-reduced-shank-drill-bit-1-7-32-in","provider":"Voomi Supply","version":"1.0","type":"link"}