{"product_id":"guhring-9012420072000-screw-machine-drill-bit-7-2mm","title":"Guhring 9012420072000 Screw Machine Drill Bit 7.2mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9012420072000 is a solid carbide, screw machine length drill bit designed for high-performance drilling in demanding production environments. Built to DIN 6539 standards, it features a 7.2 mm (0.2835 inch) diameter with a 140-degree split point and web-thinned geometry that reduces thrust and improves entry accuracy. The overall length is 74 mm (2.91 inches) with a 34 mm flute length and a 40 mm straight-cylindrical shank. This bit is suited for machinists, toolroom technicians, and production floor operators working with CNC machines, drill presses, and screw machines.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is intended for use in ferrous materials, specifically cast iron and steel. The screw machine length format — shorter than jobber length — provides added rigidity and reduced deflection, making it well suited for close-tolerance hole production in production machining, job shop, and maintenance repair operations. The 3xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes up to 23.2 mm (0.913 inch) maximum drilling depth. Coolant-through capability is not included in this configuration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide submicron-grade construction for wear resistance in steel and cast iron\u003c\/li\u003e\n  \u003cli\u003e140-degree SU split point with web thinning for reduced thrust and accurate self-centering\u003c\/li\u003e\n  \u003cli\u003eDIN 6539 standard geometry, Series 1242\u003c\/li\u003e\n  \u003cli\u003eScrew machine length for increased rigidity over jobber-length alternatives\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, two-flute spiral design with parallel web configuration\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of plus 0.006 to plus 0.021 mm for consistent hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard DIN 6539 screw machine length drill bit suitable for use in CNC machining centers, drill presses, and screw machines where a straight-cylindrical shank and 7.2 mm diameter are required. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom personnel. Secure the shank fully in a compatible chuck or collet system rated for the spindle speed appropriate to the workpiece material and bit diameter. Ensure the machine is at a complete stop before changing or inspecting the bit. Do not exceed the maximum drilling depth of 23.2 mm in a single pass 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 Diameter\u003c\/strong\u003e: 7.2 mm (0.2835 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 74 mm (2.91 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 34 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 40 mm (1.5748 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2835 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 23.2 mm (0.913 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: SU (Split Point)\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eTool Material\u003c\/strong\u003e: Solid Carbide (Submicron Grade)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: plus 0.006 to plus 0.021 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 6539\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1242\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: 9012420072000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730459263282,"sku":"9012420072000","price":185.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/79e8bb79bf5d14140aab84ad80c69609_4812d04c-0c80-4efb-8e92-a20b1f9c15ec.jpg?v=1788717809","url":"https:\/\/voomisupply.com\/products\/guhring-9012420072000-screw-machine-drill-bit-7-2mm","provider":"Voomi Supply","version":"1.0","type":"link"}