{"product_id":"guhring-9006090078000-jobber-drill-bit-7-8mm-carbide","title":"Guhring 9006090078000 Jobber Drill Bit 7.8mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9006090078000 is a jobber-length drill bit designed for precision drilling in demanding machining applications. Built from submicron-grade solid carbide and coated with titanium nitride (TiN), this bit delivers extended tool life and consistent performance in hard and abrasive workpiece materials. It measures 3.11 inches in overall length with a 7.8 mm (0.3071 inch) diameter and features a 150-degree drill point angle suited for self-centering entry without a pilot hole. The three-flute, regular spiral design improves chip evacuation and reduces cutting forces compared to standard two-flute geometries. Licensed machinists and CNC operators are the primary users of this tooling.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in CNC machining centers, drill presses, and manual machines where tight tolerances and clean entry holes are required. The web-thinned, tapered web configuration reduces thrust force at the cutting tip, making it well suited for drilling stainless steel, hardened steel, cast iron, and similar difficult-to-machine materials. With a 5xD flute-to-diameter ratio and a maximum drilling depth of 1.43 inches (36.30 mm), it handles moderate-depth holes in both production and job-shop environments. The straight-cylindrical shank seats directly into standard drill chucks or collet holders without adapters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSubmicron-grade solid carbide construction for hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTitanium nitride (TiN) coating reduces friction and extends cutting life\u003c\/li\u003e\n  \u003cli\u003eThree-flute spiral design improves chip removal and hole finish\u003c\/li\u003e\n  \u003cli\u003e150-degree point angle with web thinning enables self-centering entry\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard chucks and collet systems\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6539 specification for consistent dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-specification jobber-length drill bit conforming to DIN 6539, compatible with standard straight-shank drill chucks and collet holders accepting a 0.3071-inch shank diameter. Fits within the GUHRING Series 609 tooling family for drill bit sizes in the 7.00 mm to 8.00 mm range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tool is installed by machinists and CNC setup technicians. Before mounting, ensure the machine spindle is fully stopped and locked out per applicable machine safety procedures. Seat the straight-cylindrical shank fully into the chuck or collet and tighten to the tool-holder manufacturer's specified clamping method. Inspect the TiN coating and cutting edges for chips or wear before each use, and replace the bit if diameter tolerance or cutting performance is outside acceptable limits for the application.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7.8 mm (0.3071 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.11 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.89 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.43 inches (36.30 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3071 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 31.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 150 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular 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\u003eMaterial\u003c\/strong\u003e: Submicron-Grade Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard, Web-Thinned, Tapered Web\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Self-Centering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.015 to 0.000 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 609\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 6539\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\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: 9006090078000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51751534068018,"sku":"9006090078000","price":224.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3ddff9395fe8773e92b2e14cb487240a_f4f32ee2-a2e7-49cb-abc6-489602d03735.jpg?v=1788923749","url":"https:\/\/voomisupply.com\/products\/guhring-9006090078000-jobber-drill-bit-7-8mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}