{"product_id":"guhring-9003290021800-cobalt-stub-drill-bit-0-086-in","title":"Guhring 9003290021800 Cobalt Stub Drill Bit 0.086 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9003290021800 is a cobalt screw machine length (stub) drill bit designed for high-performance drilling in demanding materials. Built to DIN 1897 standards, this bit measures 0.086 inches (Wire Size 44) in diameter with an overall length of 40 mm and a 130-degree split point angle. The web-thinned geometry reduces thrust force at entry and helps maintain accuracy in harder substrates. With a bright uncoated finish and right-hand spiral flute configuration, this bit is suited for machinists, tool-and-die technicians, and maintenance professionals working with tight tolerances in short-reach applications.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is rated for use in titanium alloy as its primary workpiece material, making it a reliable choice for aerospace, precision manufacturing, and industrial maintenance environments. The stub length provides added rigidity compared to jobber-length bits, reducing deflection in shallow-hole applications. A maximum drilling depth of 0.383 inches (9.73 mm) and a 3xD flute-to-diameter ratio make it appropriate for CNC machine centers, drill presses, and manual machining operations where stub-length bits are specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction for heat resistance and extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e130-degree point angle optimized for drilling titanium alloy and similar tough workpiece materials\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web configuration reduces entry thrust and improves chip clearance\u003c\/li\u003e\n  \u003cli\u003eStub length design increases rigidity and minimizes deflection in short-reach holes\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for consistent chip evacuation\u003c\/li\u003e\n  \u003cli\u003eBuilt to DIN 1897 specification with a diameter tolerance of +0.000 to -0.014 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a stub-length replacement or production drill bit for machining operations specifying Wire Size 44 (0.086 inches) tooling conforming to DIN 1897. Primary workpiece material compatibility listed as titanium alloy.\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 cutting tool setup and machine operation. Secure the straight-cylindrical shank firmly in the appropriate chuck or collet before operation, and verify runout is within acceptable tolerance for the application. Shut down and de-energize any machine tool fully before changing tooling. Do not exceed the recommended maximum drilling depth of 0.383 inches without retracting to clear chips.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 44\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.086 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\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\u003eOverall Length\u003c\/strong\u003e: 40 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 13 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.383 inches (9.73 mm)\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\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: Parallel, 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\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium Alloy\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\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 329\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: 9003290021800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51738700579122,"sku":"9003290021800","price":15.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cd34324ed34566aa1b0070b574ba10dd.jpg?v=1788803055","url":"https:\/\/voomisupply.com\/products\/guhring-9003290021800-cobalt-stub-drill-bit-0-086-in","provider":"Voomi Supply","version":"1.0","type":"link"}