{"product_id":"chicago-latrobe-49406-screw-machine-drill-bit-0-1065-in","title":"Chicago-latrobe 49406 Screw Machine Drill Bit 0.1065 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 49406 is a screw machine length drill bit designed for high-production drilling in ferrous metals including cast iron and steel. At 0.1065 inches in diameter (Wire Size 36), this heavy-duty bit features a 135-degree split point that reduces walking and decreases the thrust required to start the hole. The two-flute spiral design with web-thinned, parallel-web construction promotes efficient chip evacuation. The straight-cylindrical shank seats securely in standard drill chucks. Manufactured from coated high speed steel, this bit is built for repeated use in demanding shop and field applications where dimensional accuracy is critical.\u003c\/p\u003e\n\u003cp\u003eThe 49406 is suited for drilling operations in cast iron and steel workpieces where a short, rigid bit is preferred over a jobber-length drill. Screw machine length bits are commonly used in CNC drilling centers, drill presses, and hand-held power tools where reduced bit overhang improves hole straightness and minimizes deflection. The overall length of 1-13\/16 inches and flute length of 13\/16 inches keep the cutting zone close to the chuck, making this bit a standard choice in production machining, metal fabrication, and maintenance environments. It conforms to NAS 907 specification under the NAS designation and meets ISO standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces walking and lowers entry thrust on hard metals\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web improves chip clearance and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eCoated high speed steel construction extends cutting life in steel and cast iron\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides superior rigidity and hole accuracy versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, two-flute spiral design compatible with standard drill equipment\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance held to +0.0000 to -0.0005 inches for consistent hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for drilling cast iron and steel workpieces. Compatible with standard drill chucks accepting straight-cylindrical shanks. Part of CHICAGO-LATROBE Series 159 heavy-duty screw machine drill bits.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and serviced by machinists, tool-and-die tradespeople, and maintenance technicians. Secure the straight shank fully in the drill chuck before operation and confirm runout is within acceptable limits. Use appropriate cutting fluid or coolant for steel applications to extend bit life, even though coolant-through is not available on this bit. Inspect the cutting edges for wear before each use and replace when the point geometry is degraded to avoid oversized or tapered holes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.1065 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 36\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 13\/16 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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: Straight-Cylindrical\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\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\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 159\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: NAS 907 (NAS), ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0042 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: 49406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51731273482546,"sku":"49406","price":34.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c946b631595da509d19ab114b80d510c.jpg?v=1788729105","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-49406-screw-machine-drill-bit-0-1065-in","provider":"Voomi Supply","version":"1.0","type":"link"}