{"product_id":"guhring-9055240027800-cobalt-stub-drill-bit-7-64-in","title":"Guhring 9055240027800 Cobalt Stub Drill Bit 7\/64 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055240027800 is a cobalt stub-length (screw machine length) drill bit designed for precision drilling in metalworking and machining applications. Built to DIN 1897 standards, it features a 7\/64 inch (0.1094 inch) diameter with a four-facet split point at 118 degrees, delivering fast, accurate starts without a center punch. The M35 cobalt material grade provides heat resistance and edge retention well above standard HSS, making this bit a reliable choice for production environments and repair shops where consistent hole quality matters. A bright, uncoated finish suits general-purpose use across a range of workpiece materials.\u003c\/p\u003e\n\u003cp\u003eThis stub-length drill bit is sized for applications where a shorter flute length improves rigidity and reduces deflection, particularly in drill press, CNC, and turret lathe setups. Its primary workpiece designation is aluminum, though the cobalt construction handles a broad range of machinable metals. The straight cylindrical shank accepts standard collets and drill chucks, and the right-hand spiral flute geometry evacuates chips efficiently in through-hole and shallow-hole operations. It is a practical pick for machinists, tool-and-die techs, and maintenance professionals who need a dependable stub drill in a common fractional size.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM35 cobalt construction for improved heat resistance and edge retention over standard HSS\u003c\/li\u003e\n  \u003cli\u003eFour-facet split point at 118 degrees for self-centering starts and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eStub length (DIN 1897) improves rigidity and minimizes deflection in short-reach setups\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration reduces cutting resistance\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with regular helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish compatible with standard cutting fluids and coolants\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or production stub drill bit for standard drill chucks and collet systems accepting a 0.1094 inch straight cylindrical shank, conforming to DIN 1897 Series 5524 specifications.\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 or maintenance technicians familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is de-energized before inserting or removing the bit from the chuck or collet. Verify shank seating and chuck tightness before beginning a cut. Always use appropriate cutting fluid or coolant for the workpiece material to preserve edge life and maintain dimensional tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Fractional)\u003c\/strong\u003e: 7\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.1094 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt (M35 Grade)\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\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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular Helix\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.630 inches (16.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.811 inches (46.00 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: 0.1094 inches (2.78 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.1811 inches (30.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.466 inches (11.83 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.014 mm\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\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5524\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 9055240027800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730422595890,"sku":"9055240027800","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e72341f1067e885a78170716b4f536e9_c1760f32-e70b-4e6c-84da-01b1fe4756a8.jpg?v=1788717185","url":"https:\/\/voomisupply.com\/products\/guhring-9055240027800-cobalt-stub-drill-bit-7-64-in","provider":"Voomi Supply","version":"1.0","type":"link"}