{"product_id":"guhring-9003290190000-stub-drill-bit-19mm-cobalt","title":"Guhring 9003290190000 Stub Drill Bit 19mm Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9003290190000 is a stub-length (screw machine length) cobalt drill bit designed for high-performance drilling in tough ferrous materials. Built to DIN 1897 standards, it measures 19.00 mm (0.7480 inches) in diameter with a 5.0 inches overall length and a 130-degree cone relief point geometry. The M35 cobalt steel construction and oxide finish give it the heat resistance needed for demanding applications. Web thinning and a tapered web configuration reduce entry force and improve chip evacuation. This bit is intended for installation by machinists, maintenance technicians, and metalworking tradespeople working on production or repair applications.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling steel, stainless steel, cast iron, and high-temperature alloys in both production and maintenance environments. The stub-length (screw machine) format provides added rigidity compared to jobber-length bits, making it a preferred choice when working in tight clearances or when minimizing deflection is critical. It is compatible with standard drill presses, CNC machining centers, and hand-held drilling equipment accepting straight-cylindrical shanks. The Series 329 designation identifies this as part of GUHRING's DIN 1897 stub drill lineup.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt steel construction handles elevated cutting temperatures in ferrous and high-temp alloy materials\u003c\/li\u003e\n\u003cli\u003e130-degree cone relief point reduces thrust force and improves centering on hard materials\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, tapered web design lowers entry resistance and aids chip flow\u003c\/li\u003e\n\u003cli\u003eOxide finish provides corrosion resistance and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003eStub-length (screw machine) format maximizes rigidity and minimizes deflection\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of +0.000 to -0.033 mm for consistent, repeatable hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a DIN 1897 stub-length replacement or direct-fit drill bit for applications requiring a 19.00 mm straight-shank cobalt drill. Primary workpiece materials include steel, stainless steel, cast iron, and high-temperature alloys.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or metalworking technicians familiar with drilling speeds and feeds for cobalt tooling. Secure the straight-cylindrical shank firmly in the chuck or collet before operation to prevent slippage and runout. Do not exceed the maximum drilling depth of 2.5197 inches (64.00 mm) per the flute length specification. Ensure cutting fluid or coolant is applied at the surface when drilling stainless steel or high-temperature alloys to extend tool life, noting this bit does not support through-coolant delivery.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 19.00 mm (0.7480 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.0 inches (127.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.5197 inches (64.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 19.00 mm (0.7480 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 2.4803 inches (63.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 2.5197 inches (64.00 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\u003ePoint Type\u003c\/strong\u003e: Cone Relief\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt (M35)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\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: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.000 to -0.033 mm\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: 329\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 pounds\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: 9003290190000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51728589259058,"sku":"9003290190000","price":160.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/500bcb13630365f3f57c8d23a0b7b46b_75320891-6be5-45f0-bd99-e3ddf5fd6155.jpg?v=1788693702","url":"https:\/\/voomisupply.com\/products\/guhring-9003290190000-stub-drill-bit-19mm-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}