{"product_id":"chicago-latrobe-48928-7-16-inch-hss-left-hand-drill-bit","title":"Chicago-latrobe 48928 7\/16 Inch Hss Left Hand Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 48928 is a screw machine length drill bit designed for general-purpose drilling in a wide range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it features a 7\/16 inch (0.4375 inch) diameter, a 118-degree standard point angle, and a left-hand cutting direction. The overall length is 3-7\/16 inches, keeping it compact for use in tight spaces and screw machine applications. The web-thinned, parallel-web construction reduces thrust requirements at the point and improves chip clearance. Licensed tradespeople, machinists, and service technicians who work with left-hand extraction drilling will recognize this bit as part of the trusted Chicago-Latrobe Series 157L lineup.\u003c\/p\u003e\u003cp\u003eThis bit is suited for drilling into aluminum, copper, magnesium, slate, thermoplastic, and wood. The screw machine length format makes it a practical choice for turret lathes, CNC screw machines, and bench drill press work where reduced overhang improves rigidity and accuracy. Its left-hand cut is especially useful for removing broken fasteners, since the reverse rotation can back out a damaged stud or bolt as the bit makes contact. The straight shank and standard point geometry allow it to seat in any standard drill chuck sized for the 7\/16 inch shank diameter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand cutting direction for reverse-rotation drilling and broken fastener extraction\u003c\/li\u003e\n\u003cli\u003eHSS construction with bright, uncoated finish for general-purpose performance\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned tip to reduce entry thrust\u003c\/li\u003e\n\u003cli\u003eScrew machine length (3-7\/16 inches OAL) for improved rigidity in close-clearance work\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute, 2-1\/16 inch flute length, for consistent chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight shank (0.4375 inch diameter) fits standard drill chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style general-purpose replacement or service bit compatible with any standard drill press, screw machine, turret lathe, or hand drill fitted with a chuck that accepts a straight shank of 7\/16 inch diameter. Listed under Series 157L and meets ISO standards for drill geometry.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstall this bit into a properly sized drill chuck and tighten with a chuck key before operation. Ensure the workpiece is securely clamped or fixtured before drilling. When using left-hand bits for fastener extraction, rotate the driving tool in reverse and apply steady downward pressure. Always wear appropriate eye protection and follow applicable ANSI and shop-safety requirements when operating cutting tools.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7\/16 inch (0.4375 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-7\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/16 inches (2.0625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1-3\/8 inches (1.375 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4375 inch (11.11 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright, Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0010 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Aluminum, Copper, Magnesium, Slate, Thermoplastic, Wood\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 157L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\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: 48928\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51744601145650,"sku":"48928","price":35.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b756229e52e0e53ff068640ab9b6e3ac.jpg?v=1788858852","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-48928-7-16-inch-hss-left-hand-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}