{"product_id":"guhring-9005520079400-screw-machine-drill-bit-5-16in-hss","title":"Guhring 9005520079400 Screw Machine Drill Bit 5\/16in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9005520079400 is a screw machine length (stub) drill bit engineered for high-performance drilling in steel, aluminum, and non-ferrous materials. At 5\/16 inches (0.3125 inches) in diameter, it features a 130-degree point angle with cone relief geometry for fast, clean entry and reduced thrust. The parabolic flute design promotes aggressive chip evacuation, which is critical when drilling deeper holes in gummy or stringy materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this bit is suited for general-purpose production and maintenance drilling where a shorter overall length improves rigidity and reduces deflection. It conforms to DIN 1897 and is rated as a high-performance grade bit.\u003c\/p\u003e\n\u003cp\u003eThis bit is designed for use in screw machine operations, CNC lathes, drill presses, and handheld drill applications where stub-length rigidity is preferred over jobber-length reach. The 3xD flute-to-diameter ratio and web-thinned parallel web configuration make it particularly effective for through-hole drilling in steel and aluminum workpieces. Machinists, tool and die technicians, and maintenance professionals working in metal fabrication and production environments will find this bit appropriate for repetitive, close-tolerance drilling tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e130-degree cone relief point angle reduces thrust and improves self-centering on entry\u003c\/li\u003e\n  \u003cli\u003eParabolic flute geometry accelerates chip evacuation in deep and interrupted cuts\u003c\/li\u003e\n  \u003cli\u003eStub (screw machine) length provides increased rigidity and reduced deflection versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web lowers cutting resistance and extends tool life\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction for standard drill press and CNC spindle use\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 1897 specification for consistent dimensional quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 1897 stub-length HSS drill bit for use with standard straight-shank drill chucks on screw machines, CNC lathes, drill presses, and hand drills accepting a 5\/16-inch straight-cylindrical shank. Primary workpiece materials are steel, aluminum, and non-ferrous metals.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by trade machinists and maintenance technicians using a standard drill chuck compatible with a 5\/16-inch straight-cylindrical shank. Ensure the spindle and chuck are free of debris before seating the shank fully. Secure the chuck to the rated torque of the equipment before operation. Follow applicable shop safety protocols and machine guarding requirements when operating drilling equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-7\/16 inches\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.6535 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.9880 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 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: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Fast\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: Cone Relief\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\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: 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: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Aluminum, Non-Ferrous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 552\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine)\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: 9005520079400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51732546322738,"sku":"9005520079400","price":37.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66f285c6df25a90be7729673d184d166.jpg?v=1788744294","url":"https:\/\/voomisupply.com\/products\/guhring-9005520079400-screw-machine-drill-bit-5-16in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}