{"product_id":"guhring-9055250079400-extra-length-drill-bit-5-16-in","title":"Guhring 9055250079400 Extra Length Drill Bit 5\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055250079400 is a solid carbide extra length drill bit designed for high-performance drilling in demanding industrial and machining applications. Built to Series 5525 standards, it features a 5\/16-inch diameter, a 140-degree standard point angle, and a FIREX coating for extended tool life under high heat and wear conditions. The spiral flute geometry is right-hand cutting with a web-thinned, tapered web configuration that supports self-centering entry and reduces thrust force. Coolant-through capability allows internal flood or mist delivery to the cutting zone. This bit is suited for use by machinists, tool-and-die professionals, and CNC operators working in production environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is engineered for primary use in cast iron and steel workpieces, with secondary capability in aluminum and titanium alloys. The 12xD flute-to-diameter ratio and 108 mm flute length give it reach well beyond standard-length tooling, making it appropriate for deep-hole work where a standard jobber bit cannot reach. The straight-cylindrical shank seats directly in standard drill chucks or collet holders without modification. It is well-suited for vertical machining centers, drill presses, and multi-spindle setups requiring consistent hole geometry at depth.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide submicron-grade construction for hardness and edge retention in ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eFIREX coating provides thermal and oxidation resistance, extending tool life in high-speed applications\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design delivers cutting fluid directly to the tip for deep-hole chip evacuation\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web with facet point grinding supports self-centering and reduces entry thrust\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle optimized for cast iron and steel without requiring a pilot hole\u003c\/li\u003e\n  \u003cli\u003e12xD flute-to-diameter ratio with 108 mm flute length enables deep-hole drilling beyond standard tooling reach\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-grade solid carbide extra length drill for use in cast iron, steel, aluminum, and titanium alloy workpieces per GUHRING Series 5525 specifications and DIN 6537 standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists familiar with CNC or manual drilling equipment. Ensure the spindle and chuck or collet are fully powered down and secured before tool changes. Verify that coolant-through lines are properly connected and flow-tested before initiating deep-hole cycles. Consult machine tool manufacturer guidelines and applicable DIN 6537 standards for runout tolerances and feed-rate parameters appropriate to workpiece material.\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 (OAL)\u003c\/strong\u003e: 146 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 108 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 92.12 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm\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 by Diameter Ratio\u003c\/strong\u003e: 12xD\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, Facet Point Grinding, Self-Centering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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: FIREX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Aluminum, Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5525\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 6537, California Prop 65\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 9055250079400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51754350084402,"sku":"9055250079400","price":458.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fbf3e1b46b5e5f27b552acae0f5a058d.jpg?v=1788944568","url":"https:\/\/voomisupply.com\/products\/guhring-9055250079400-extra-length-drill-bit-5-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}