{"product_id":"guhring-9006180063500-extra-length-cobalt-drill-bit","title":"Guhring 9006180063500 Extra Length Cobalt Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9006180063500 is a Series 618 extra length cobalt drill bit designed for deep hole drilling in demanding production environments. Measuring 0.25 inches in diameter with an overall length of 8.465 inches and a flute length of 5.906 inches, this bit reaches depths up to 5.531 inches in a single setup. The parabolic flute geometry promotes efficient chip evacuation at extended depths, reducing the need for peck drilling cycles. Constructed from uncoated cobalt high-speed steel, the bit delivers heat resistance and edge retention when cutting through tough alloys. A web-thinned, tapered web design reduces thrust force at the cutting point. It is sold individually and intended for use by machinists and toolroom professionals in CNC and manual drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for deep hole drilling applications at a flute-to-diameter ratio of 15xD. Primary workpiece materials include aluminum and titanium alloy, with steel listed as a secondary application material. The straight-cylindrical shank measures 0.25 inches in diameter and 65 millimeters in length, providing secure chuck engagement on standard drill chucks and collet holders. The 130-degree drill point angle suits general-purpose hole entry on the listed materials. Right-hand cutting direction is standard. The bit conforms to DIN 1869 specification for extra length twist drills and is subject to California Proposition 65 requirements.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eParabolic flute geometry for efficient chip evacuation in deep hole drilling\u003c\/li\u003e\n  \u003cli\u003eCobalt construction provides heat resistance and edge retention on hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web reduces cutting thrust and entry force\u003c\/li\u003e\n  \u003cli\u003e130-degree standard point angle suited for aluminum, titanium alloy, and steel workpieces\u003c\/li\u003e\n  \u003cli\u003e15xD flute-to-diameter ratio supports depths up to 5.531 inches without step drilling\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 1869 extra length drill standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-grade Series 618 extra length drill for use in standard 0.25-inch drill chucks and collet systems; primary workpiece compatibility is aluminum and titanium alloy with secondary suitability for steel per manufacturer specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank fully in a chuck or collet before operation, verifying runout to minimize premature wear at extended lengths. Power down and lock out the machine spindle before changing bits. Do not exceed the rated maximum drilling depth of 5.531 inches without repositioning or confirming chip clearance, as chip packing in deep holes can cause bit breakage or workpiece damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 8.465 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5.906 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 5.531 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 65 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 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: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 15xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: E\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 618\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 1869\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum, Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 9006180063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51750366708018,"sku":"9006180063500","price":110.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6c3dcf68102d58101973d0861ba10344.jpg?v=1788915089","url":"https:\/\/voomisupply.com\/products\/guhring-9006180063500-extra-length-cobalt-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}