{"product_id":"guhring-9055240027000-cobalt-stub-drill-bit-2-70mm","title":"Guhring 9055240027000 Cobalt Stub Drill Bit 2.70mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9055240027000 is a cobalt stub-length (screw machine length) twist drill bit designed for precision drilling in metalworking and light industrial applications. Built to DIN 1897 standards, this 2.70 mm diameter bit features a 118-degree four-facet split point and a web-thinned, tapered web configuration that reduces entry force and improves centering. The bright, uncoated cobalt construction provides heat resistance and edge retention well beyond standard high-speed steel. With an overall length of 46 mm (1.811 inches) and a maximum drilling depth of 11.95 mm (0.469 inches), this stub-series bit delivers rigid, chatter-free performance in short-reach drilling setups. Machinists and tool-and-die technicians are the primary users.\u003c\/p\u003e\n\u003cp\u003eThe 9055240027000 is suited for drilling aluminum and similar non-ferrous and softer ferrous materials in production and maintenance environments. Its straight cylindrical shank at 2.70 mm diameter seats directly in standard drill chucks and collet systems without adapters. The 16 mm spiral flute length and 3xD flute-to-diameter ratio keep chips moving efficiently, making this bit a practical choice for CNC machining centers, drill presses, and hand-held power tools where a compact stub-length profile is required to minimize deflection and maximize positional accuracy.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt tool material for elevated heat resistance and wear life compared to standard HSS\u003c\/li\u003e\n  \u003cli\u003e118-degree four-facet split point with web thinning for reduced thrust and self-centering entry\u003c\/li\u003e\n  \u003cli\u003eDIN 1897 stub-length design provides a rigid, low-deflection profile\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish compatible with cutting fluids and oils without coating interaction concerns\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute geometry with tapered web configuration promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.000 to -0.014 mm for consistent hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 1897 stub-length replacement or direct-use drill bit for applications requiring a 2.70 mm (0.1063 inch) diameter hole in aluminum and comparable workpiece materials. Fits any standard drill chuck or collet accepting a 2.70 mm straight cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by a machinist or maintenance technician in a drill chuck or collet rated for the 2.70 mm shank diameter. Ensure the machine spindle is fully stopped and de-energized before changing tooling. Secure the shank to the full recommended grip depth in the chuck or collet to prevent pullout during drilling. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole tolerance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 2.70 mm (0.1063 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\u003eOverall Length\u003c\/strong\u003e: 46 mm (1.811 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 16 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 11.95 mm (0.469 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 2.70 mm (0.1063 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 30 mm (1.181 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.014 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5524\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: 0.04 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: 9055240027000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51747570450738,"sku":"9055240027000","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e72341f1067e885a78170716b4f536e9_446027bd-f3a3-42a4-9241-f6218e3307eb.jpg?v=1788882750","url":"https:\/\/voomisupply.com\/products\/guhring-9055240027000-cobalt-stub-drill-bit-2-70mm","provider":"Voomi Supply","version":"1.0","type":"link"}