{"product_id":"guhring-9006580069000-cobalt-drill-bit-letter-i-tin","title":"Guhring 9006580069000 Cobalt Drill Bit Letter I Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9006580069000 is a cobalt jobber-length drill bit sized to Letter I (0.2717 inches) and designed for high-performance drilling in demanding metalworking applications. Built to DIN 338 standards, the bit features a 130-degree split point, a parabolic flute geometry, and a titanium nitride (TiN) coating that extends tool life by reducing friction and heat buildup. The web-thinned, tapered web reduces entry resistance and improves chip evacuation. Overall length is 4-9\/32 inches with a flute length of 2-23\/32 inches. This is a straight-cylindrical shank bit with a right-hand cut, suited for use in standard drill chucks without modification.\u003c\/p\u003e\u003cp\u003eThis bit is rated for use in cast iron and steel workpieces, covering ISO material codes K and P. It fits into production drilling, maintenance, and tool-room environments where consistent hole tolerances and extended run life are priorities. The parabolic flute design allows for efficient chip removal in deeper holes, with a maximum drilling depth of 2.309 inches (58.65 mm). Machinists, tool-and-die shops, and industrial maintenance technicians regularly use Series 658 bits for repetitive drilling cycles in ferrous materials. This item ships individually (package quantity of 1); minimum order is 10 units.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter I size: 0.2717 inches diameter, conforming to DIN 338\u003c\/li\u003e\n\u003cli\u003eCobalt construction with titanium nitride (TiN) coating for extended tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e130-degree point angle with web thinning for reduced entry force and improved centering\u003c\/li\u003e\n\u003cli\u003eParabolic flute geometry (5xD ratio) promotes efficient chip evacuation in deeper cuts\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, two-flute configuration suitable for cast iron and steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling cast iron and steel workpieces, ISO material group codes K and P. Conforms to DIN 338 specification for jobber-length drill bits with straight-cylindrical shanks.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by machinists or qualified trade personnel familiar with metal-cutting tooling. Secure the shank fully in a calibrated drill chuck before operation and verify runout before high-tolerance work. Follow machine manufacturer guidelines for spindle speed and feed rate based on workpiece material and bit diameter. Inspect the cutting edges and coating for wear regularly; a degraded TiN coating or chipped edge will reduce hole quality and can damage the workpiece.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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 (Decimal Inch)\u003c\/strong\u003e: 0.2717 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-9\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-23\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.309 inches (58.65 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2717 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 40.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\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\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.022 to 0.000 mm\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 338\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 658\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 9006580069000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51731942310194,"sku":"9006580069000","price":664.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f8816182c1a081cc85e72755f1e8c882.jpg?v=1788736972","url":"https:\/\/voomisupply.com\/products\/guhring-9006580069000-cobalt-drill-bit-letter-i-tin","provider":"Voomi Supply","version":"1.0","type":"link"}