{"product_id":"guhring-9012420063500-carbide-drill-bit-0-25-in","title":"Guhring 9012420063500 Carbide Drill Bit 0.25 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9012420063500 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. The bit measures 0.25 inches (1\/4 inch, Letter E) in diameter with a 140-degree split point (SU type) that reduces walking and improves entry accuracy. A web-thinned, parallel web configuration lowers thrust requirements and extends tool life. This is a right-hand, spiral flute design with a straight-cylindrical shank, built to DIN 6539 standards. Machinists, tool-and-die shops, and maintenance technicians working with cast iron or steel specify this bit for its submicron carbide grade and consistent dimensional tolerance.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for screw machine operations and general-purpose precision drilling in ferrous materials, specifically cast iron and steel. The 3xD flute-to-diameter ratio and regular spiral geometry support efficient chip evacuation in short-hole drilling cycles. The straight-cylindrical shank seats directly in standard drill chucks and collet systems without modification. It is a single-piece solid carbide construction with a coated finish for added surface hardness and lubricity.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid submicron carbide construction for extended tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e140-degree SU point with web thinning for reduced thrust and accurate entry\u003c\/li\u003e\n  \u003cli\u003eCoated finish improves surface hardness and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eDIN 6539 specification compliance ensures dimensional consistency\u003c\/li\u003e\n  \u003cli\u003eMaximum drilling depth of 0.846 inches (21.48 mm) with 3xD flute ratio\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, regular spiral flute for efficient chip removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a screw machine length drill bit per DIN 6539 for use in cast iron and steel workpieces. Primary workpiece materials listed are cast iron and steel. Compatible with standard drill chucks and collet systems accepting a 6.35 mm straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by machinists and tool-and-die technicians in drill presses, CNC machining centers, and screw machines. Ensure the machine spindle is fully stopped and de-energized before changing tooling. Secure the shank fully in the collet or chuck to the recommended grip depth before operation. Coolant-through is not supported on this bit; use appropriate external flood or mist cooling when drilling steel at elevated speeds.\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, Letter E)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 70.00 mm (approximately 2.756 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 31.00 mm (approximately 1.220 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.35 mm (0.25 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.846 inches (21.48 mm)\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 (web-thinned)\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\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\u003eTool Material\u003c\/strong\u003e: Solid Carbide, Submicron Grade\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Coated\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\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.006 to +0.021 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 6539\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1242\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\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: 9012420063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51750899319090,"sku":"9012420063500","price":174.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f6ac5fe34e9a2dbbbf89e962d58233aa.jpg?v=1788920459","url":"https:\/\/voomisupply.com\/products\/guhring-9012420063500-carbide-drill-bit-0-25-in","provider":"Voomi Supply","version":"1.0","type":"link"}