{"product_id":"chicago-latrobe-49099-screw-machine-drill-bit-0-136in-hss","title":"Chicago-latrobe 49099 Screw Machine Drill Bit 0.136in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 49099 is a screw machine length drill bit designed for general-purpose drilling in production and repair environments. Built from high speed steel with a bright, uncoated finish, this bit features a left-hand spiral flute and a standard 118-degree point angle. The shortened screw machine length provides added rigidity compared to jobber-length bits, reducing deflection in close-tolerance drilling. The straight-cylindrical shank seats cleanly in standard three-jaw chucks and quick-change holders. Wire size designation is #29, equivalent to 0.1360 inches in diameter. This bit is suitable for machinists, fabricators, and maintenance technicians working in metal shops, production lines, and service environments.\u003c\/p\u003e\n\u003cp\u003eThe 49099 is well suited for drilling aluminum, copper, magnesium, thermoplastics, wood, and slate. The left-hand cutting direction makes it particularly useful for removing broken right-hand fasteners and studs, a common task in mechanical and maintenance work. The screw machine length body keeps the bit stiff during pecking operations in short-stroke drill presses and CNC turret setups. The two-flute spiral configuration clears chips efficiently from the cut zone.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand cut removes broken right-hand fasteners and studs without an extractor in many applications\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle works across a broad range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides greater rigidity and reduced deflection versus jobber length\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles general-purpose metal, plastic, and wood drilling\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web reduces thrust and improves penetration at entry\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance held to +0.0000 to -0.0007 inches per ISO standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose replacement or production drill bit in the CHICAGO-LATROBE Series 157L range, compatible with any standard three-jaw drill chuck or quick-change holder accepting a straight-cylindrical shank at 0.136 inches diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a properly rated drill press, lathe tailstock, or hand drill with a chuck capacity covering 0.136 inches. Secure the shank fully in the chuck before operation and verify runout is within acceptable tolerance for the application. Wear appropriate eye protection and secure the workpiece firmly before drilling. Left-hand bits are typically run in reverse on a drill press or lathe to back out broken fasteners; confirm spindle direction before starting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: #29\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.1360 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\u003eOverall Length\u003c\/strong\u003e: 1-15\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 15\/16 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, 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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0007 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0072 pounds\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: 49099\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51747503997234,"sku":"49099","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bcfb906990a15259a1e5f4c0e23c9ef.jpg?v=1788881491","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-49099-screw-machine-drill-bit-0-136in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}