{"product_id":"guhring-9055140078000-screw-machine-drill-bit-0-3071in","title":"Guhring 9055140078000 Screw Machine Drill Bit 0.3071in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055140078000 is a screw machine length solid carbide drill bit designed for high-performance drilling in cast iron and steel. It features a 0.3071-inch diameter, a 140-degree split point (SU type), and a two-flute regular spiral configuration. The straight-cylindrical shank measures 8.00 mm in diameter and seats securely in standard drill chucks and collet holders. Web thinning with a parallel web configuration reduces thrust and improves centering accuracy at the point. This bit is built to Series 5514 standards per DIN 6537K and is intended for use by machinists, tool-and-die professionals, and maintenance technicians working with ferrous materials.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for screw machine operations, CNC machining centers, and manual drill press applications where a compact, stub-length tool is preferred for rigidity. The 3xD flute-to-diameter ratio and 41.00 mm flute length support chip evacuation in short-hole drilling cycles. Primary workpiece materials include cast iron and steel, making it a practical choice for production drilling in job shops, maintenance facilities, and manufacturing environments. Coolant-through capability is not available on this model, so external coolant or cutting fluid application is recommended when drilling harder steels at elevated feeds and speeds.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide submicron-grade construction for wear resistance in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e140-degree SU split point reduces walking and improves entry accuracy without a center punch\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web lowers drilling thrust and extends tool life\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides added rigidity compared to jobber-length drills\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute for standard clockwise operation\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for consistent dimensional tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in straight-shank drill chucks and collet systems accepting an 8.00 mm shank diameter. Suitable for drilling cast iron and steel workpieces as an OEM-style production drill in CNC and manual machine tool applications within the Series 5514 product family.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or tooling technicians familiar with carbide tooling. Ensure the machine spindle and chuck are clean and free of runout before seating the shank to avoid chipping the carbide. Carbide drills are brittle compared to high-speed steel and should not be used in handheld drill applications or where workpiece fixturing is insecure. Apply appropriate cutting fluid externally when drilling steel to manage heat, as this model does not support coolant-through delivery.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.3071 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\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\u003eFlute Length\u003c\/strong\u003e: 41.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 79.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.1540 inches (29.30 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide, Submicron Grade\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: SU\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.006 to +0.021 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.3000 to 0.3500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5514\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 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: GUHRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9055140078000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51747419455794,"sku":"9055140078000","price":167.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1722d1467d4ba478bd1f6fe04876cc3d_b4b06c82-27a7-4a33-8ec6-6ebb558cbe02.jpg?v=1788879818","url":"https:\/\/voomisupply.com\/products\/guhring-9055140078000-screw-machine-drill-bit-0-3071in","provider":"Voomi Supply","version":"1.0","type":"link"}