{"product_id":"guhring-9055200069000-cobalt-stub-drill-bit-0-2717-in","title":"Guhring 9055200069000 Cobalt Stub Drill Bit 0.2717 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055200069000 is a cobalt screw machine length (stub) drill bit designed for demanding drilling applications where a shorter flute length provides increased rigidity and reduced deflection. Built to DIN 1897 standards, this bit features a 118-degree four-facet split point with web thinning for improved centering and reduced thrust force at entry. The straight-cylindrical shank and two-flute spiral design channel chips efficiently out of the hole. With a drill diameter of 0.2717 inches, it falls within the Letter I size designation and is suited for installation by machinists, maintenance technicians, and trade professionals working with aluminum and similar materials.\u003c\/p\u003e\n\u003cp\u003eThis stub-length drill bit is optimized for use in screw machine operations, CNC setups, and manual drilling where a compact overall length is required to minimize tool deflection. Its cobalt construction provides heat resistance for consistent performance in non-ferrous metals, with aluminum listed as the primary workpiece material. The tapered web configuration and web-thinned geometry support clean entry and exit in production drilling environments. A maximum drilling depth of 0.931 inches supports through-hole and blind-hole work within the stub-length operating range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt tool material with coated finish for heat and wear resistance\u003c\/li\u003e\n  \u003cli\u003e118-degree four-facet split point with web thinning reduces thrust and improves self-centering\u003c\/li\u003e\n  \u003cli\u003eDIN 1897 stub length for added rigidity and reduced deflection in close-tolerance work\u003c\/li\u003e\n  \u003cli\u003eTwo-flute regular spiral design promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with tapered web configuration for consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style stub drill bit conforming to DIN 1897 standards, suitable for use in standard drill chucks and collet systems accepting a 6.90 mm straight-cylindrical shank. Listed primary workpiece material is aluminum.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by a qualified machinist or maintenance technician familiar with rotating cutting tools. Ensure the drill press, lathe, or CNC spindle is fully stopped and de-energized before changing or inspecting bits. Secure the shank firmly in a properly sized chuck or collet to the appropriate clamping torque specified by the tool holder manufacturer. Do not exceed the maximum drilling depth of 0.931 inches for this stub-length configuration.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: I\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.2717 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Four Facet, Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\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: 34.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 74.00 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: 6.90 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.931 inches (23.65 mm)\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 3xD\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: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5520\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.037 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: 9055200069000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51755915313458,"sku":"9055200069000","price":24.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/905a5006a23292a1fffffa23d3b1b98c_ef1b3e7e-8b76-4e0a-972d-9c07a1cef89c.jpg?v=1788961552","url":"https:\/\/voomisupply.com\/products\/guhring-9055200069000-cobalt-stub-drill-bit-0-2717-in","provider":"Voomi Supply","version":"1.0","type":"link"}