{"product_id":"chicago-latrobe-53644-reduced-shank-cobalt-drill-bit","title":"Chicago-latrobe 53644 Reduced Shank Cobalt Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 53644 is a reduced shank cobalt drill bit designed for demanding metal drilling applications in trade and industrial settings. The bit measures 11\/16 inches (0.6875 inches) in diameter with a 1\/2 inch straight-cylindrical shank, allowing it to chuck into standard 1\/2 inch drill chucks despite the larger cutting diameter. The 118-degree split point geometry promotes self-centering and reduces walking on hard workpieces. Overall length is 6 inches with a 3-1\/8 inch flute length, giving adequate clearance for most through-hole and blind-hole applications. Machinists, maintenance mechanics, and metal fabricators working with ferrous metals will find this bit well-suited to their workloads.\u003c\/p\u003e\u003cp\u003eThe 53644 is intended for portable drilling operations in ferrous metal environments. Primary target materials include cast iron and steel. Secondary compatible materials include alloy steel, carbon steel, and cast iron in various grades. The Series 190C-TN designation places this bit in a general-purpose cobalt line suited for job-site and shop use alike. The coated finish supports tool life in repetitive cutting cycles. This bit ships individually and is sold as a single unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material for elevated heat resistance when drilling hard ferrous metals\u003c\/li\u003e\n\u003cli\u003e118-degree split point reduces thrust force and promotes accurate entry without a center punch\u003c\/li\u003e\n\u003cli\u003eReduced shank design — 1\/2 inch shank on an 11\/16 inch diameter bit — fits standard 1\/2 inch chucks\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, 2-flute spiral configuration for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCoated finish extends cutting edge durability under sustained use\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of +0.0000 to -0.0012 inches holds close fit on drilled holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in portable drilling applications targeting cast iron, steel, alloy steel, and carbon steel workpieces. Fits any drill or drill press equipped with a standard 1\/2 inch chuck.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by machinists, maintenance mechanics, or qualified metal fabricators familiar with drill press and portable drill operation. Secure the workpiece firmly before drilling to prevent rotation. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed. No coolant is required per the manufacturer specification, but operator discretion applies when drilling thick stock or hard alloys.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 11\/16 inches (0.6875 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.25 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\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\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\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: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Alloy Steel, Carbon Steel, Cast Iron\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: 190C-TN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Required\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 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: 53644\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51730062180658,"sku":"53644","price":99.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/87f98e80c41f705df4eb069c4dbd0b13_3f1d04af-9e25-4cbb-bd0b-5ca6b11c70a9.jpg?v=1788711037","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-53644-reduced-shank-cobalt-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}