{"product_id":"chicago-latrobe-69028-jobber-drill-bit-wire-28-hss","title":"Chicago-latrobe 69028 Jobber Drill Bit Wire 28 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 69028 is a jobber-length twist drill bit designed for precision drilling in steel alloy and similar ferrous materials. Built from high-speed steel with a bright uncoated finish, this bit is part of the heavy-duty Series 150DH lineup. It features a 135-degree split point for self-centering starts and reduced walk on hard surfaces, along with a parabolic flute geometry that promotes fast chip evacuation and cooler cutting. The wire gauge size is No. 28, with a decimal diameter of 0.1405 inches and a diameter tolerance of -0.0007 to 0.0000 inches. Professional machinists, maintenance technicians, and trade contractors working with steel alloy stock will find this bit suited to production and maintenance drilling applications.\u003c\/p\u003e\u003cp\u003eThis bit is intended for right-hand cutting operations in steel alloy workpieces, including structural steel, fabricated components, and general metalworking applications. The parabolic flute design reduces cutting resistance and improves chip clearance in deeper holes compared to standard jobber flute geometry. The straight cylindrical shank measures 0.1405 inches in diameter and seats directly in standard drill chucks without adapters. Series 150DH bits are positioned as heavy-duty jobber-length tools for both bench drill press use and hand-held drill motor applications in shop and field environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e135-degree split point for self-centering starts and reduced thrust in steel alloy\u003c\/li\u003e\n\u003cli\u003eParabolic flute geometry for faster chip evacuation and reduced heat buildup\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web construction for lighter cutting action\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction rated for heavy-duty drilling service\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish for general-purpose ferrous metal applications\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard drill chucks without a bushing or adapter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit jobber-length drill bit for use in standard 3-jaw drill chucks on bench drill presses, drill motors, and CNC drilling equipment accepting straight cylindrical shanks. Primary workpiece material is steel alloy as specified by the manufacturer.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or trade professionals familiar with metal drilling operations. Secure the shank fully in the chuck and verify concentricity before drilling. Always power down and lock out the drill press or drill motor before changing bits. Use appropriate cutting fluid or coolant for extended production runs in steel alloy, even though this bit does not support coolant-through delivery.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\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\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\u003eFinish\/Coating\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0007 to 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 150DH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 69028\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51747477651762,"sku":"69028","price":47.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5b06df0392c01daaf22acbeb8c6da503.jpg?v=1788881067","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-69028-jobber-drill-bit-wire-28-hss","provider":"Voomi Supply","version":"1.0","type":"link"}