{"product_id":"guhring-9055200107200-cobalt-stub-drill-bit-27-64-in","title":"Guhring 9055200107200 Cobalt Stub Drill Bit 27\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055200107200 is a cobalt stub-length drill bit in the Series 5520 line, designed for fast, accurate hole-making in metalworking applications. It measures 27\/64 inch (0.4219 inches) in diameter with an overall length of 89 millimeters (approximately 3.5 inches) and a flute length of 43 millimeters (approximately 1.69 inches). The 118-degree four facet split point geometry reduces walking and thrust load at entry, while the web-thinned, tapered web construction improves chip evacuation. The straight-cylindrical shank measures 10.72 millimeters in diameter and fits standard drill chucks. This bit is manufactured to DIN 1897 standards and carries a diameter tolerance of plus 0.000 to minus 0.027 millimeters.\u003c\/p\u003e\n\u003cp\u003eThis stub-length drill bit is suited for production and maintenance work where rigidity matters more than reach. Primary workpiece material is aluminum, though cobalt construction supports use across a range of metals and harder alloys. The 3xD flute-to-diameter ratio and right-hand spiral flutes keep chip clearance efficient during through-hole and blind-hole operations. Machinists, tool and die technicians, and maintenance mechanics working in manufacturing, HVAC fabrication, or sheet metal will find this bit appropriate for use in drill presses, CNC machining centers, and handheld power drills with adequate chuck capacity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt tool material for elevated heat and wear resistance during metal drilling\u003c\/li\u003e\n  \u003cli\u003e118-degree four facet split point reduces center walking and entry thrust\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web improves chip flow and reduces cutting resistance\u003c\/li\u003e\n  \u003cli\u003eDIN 1897 stub-length specification provides added rigidity versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eMaximum drilling depth of 1.2170 inches (30.92 millimeters)\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute pattern for standard rotating spindle use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 1897-specification stub-length replacement drill bit for use with standard straight-shank drill chucks accommodating a 10.72 millimeter shank diameter. Consult machine tooling specifications to confirm chuck capacity before installation.\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 and machine tool safety. Ensure the drill press, CNC spindle, or handheld drill is fully powered down and locked out before changing bits. Secure the shank fully in the chuck and verify runout before beginning a cut. Follow applicable shop safety standards and wear appropriate eye and hand protection when operating drilling equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Inch)\u003c\/strong\u003e: 27\/64\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.4219 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 89 millimeters (approximately 3.5 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 43 millimeters (approximately 1.69 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.2170 inches (30.92 millimeters)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10.72 millimeters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered 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\u003eDrill Length Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: plus 0.000 to minus 0.027 millimeters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range (Decimal Inch)\u003c\/strong\u003e: 0.4000 to 0.4500 inches\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: 0.117 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: 9055200107200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51736891556146,"sku":"9055200107200","price":46.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/905a5006a23292a1fffffa23d3b1b98c_ab67bd9c-2197-4265-931c-21874f65c407.jpg?v=1788781609","url":"https:\/\/voomisupply.com\/products\/guhring-9055200107200-cobalt-stub-drill-bit-27-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}