{"product_id":"chicago-latrobe-55251-taper-length-drill-bit-19-64-in","title":"Chicago-latrobe 55251 Taper Length Drill Bit 19\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 55251 is a taper length high speed steel drill bit designed for heavy-duty metal drilling in industrial and trade applications. Built on the Series 120DHT platform, it features a 135-degree split point that eliminates walking and enables self-centering without a center punch. The parabolic flute geometry clears chips aggressively, reducing heat buildup and allowing faster feed rates compared to standard flute designs. At 0.2969 inches (19\/64 inch) in diameter with a web-thinned, tapered web configuration, this bit is suited for drilling alloy steel, carbon steel, aluminum, and other non-ferrous metals where precision and tool life matter.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in machine shop environments, maintenance and repair operations, and fabrication work requiring consistent hole quality in metallic materials. The tanged shank provides positive drive engagement in drill chucks and compatible taper-shank holders. The coated finish extends cutting life when working through harder alloy steels or abrasive carbon steel stock. At 6.375 inches overall length with a 5.125-inch flute length, it provides reach beyond what a jobber-length bit offers, making it useful for drilling through thicker workpieces or recessed areas.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point for self-centering entry with no center punch required\u003c\/li\u003e\n  \u003cli\u003eParabolic flute design for aggressive chip evacuation and reduced heat at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web configuration lowers thrust and improves penetration in hard materials\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles alloy steel, carbon steel, aluminum, and non-ferrous metals\u003c\/li\u003e\n  \u003cli\u003eCoated finish extends tool life in demanding cutting applications\u003c\/li\u003e\n  \u003cli\u003eTanged shank ensures positive drive and secure chuck engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a heavy-duty OEM-style taper length drill bit compatible with standard drill chucks and tanged-shank taper holders accepting a 0.2969-inch shank diameter. Rated for material applications including alloy steel, aluminum, carbon steel, and non-ferrous metals per manufacturer specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by machinists, tool and die technicians, or qualified tradespeople familiar with metal drilling operations. Secure the workpiece firmly before drilling and verify chuck or holder engagement before running the spindle. Follow machine manufacturer speed and feed recommendations for the material being drilled. Inspect the cutting edge and coating for wear before each 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\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 19\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2969 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (Decimal Inch)\u003c\/strong\u003e: 0.2969 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (mm)\u003c\/strong\u003e: 7.54 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length (Inch)\u003c\/strong\u003e: 1.25 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\u003eFlute Type\u003c\/strong\u003e: Parabolic\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: Tanged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, 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: Coated\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Non-Ferrous Metals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Self-Centering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 120DHT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Heavy-Duty\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: 55251\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51746830254386,"sku":"55251","price":34.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308b778c8c5cb245de4334c38cada87c.jpg?v=1788873882","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-55251-taper-length-drill-bit-19-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}