{"product_id":"guhring-9002350063500-extra-length-drill-bit-0-25in-hss","title":"Guhring 9002350063500 Extra Length Drill Bit 0.25in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9002350063500 is a high speed steel extra length drill bit designed for deep hole drilling applications. Built to DIN 1869 standards, this Series 235 bit features a 118-degree point angle, web-thinned tip for easier penetration, and an oxide finish that provides basic lubricity and corrosion resistance. The straight-cylindrical shank measures 6.35 mm in diameter with a shank length of 65 mm. At an overall length of 215 mm (approximately 8.46 inches) and a flute length of 150 mm (approximately 5.91 inches), it is engineered to reach depths that standard-length bits cannot access. Machinists, tool-and-die technicians, and maintenance professionals use this bit in drill presses and CNC drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for general-purpose deep hole drilling in cast iron and steel as its primary workpiece materials, with aluminum listed as a secondary workpiece material. The flute-to-diameter ratio is 10xD, supporting a maximum drilling depth of approximately 5.531 inches (140.48 mm). It is appropriate for both production and maintenance drilling environments where extended reach is required without a step-down or gun-drill setup. Right-hand cutting direction with a regular spiral flute pattern ensures efficient chip evacuation over the extended flute length.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDIN 1869 standard construction for consistent geometry and interchangeability\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned point reduces thrust force and improves hole entry\u003c\/li\u003e\n  \u003cli\u003e118-degree point angle suits general-purpose drilling in ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eOxide finish provides basic lubrication and mild corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e10xD flute-to-diameter ratio enables drilling to 5.531 inches depth\u003c\/li\u003e\n  \u003cli\u003eh8 diameter tolerance delivers consistent fit in drill chucks and collets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard tooling selection for operations requiring a 1\/4-inch (Letter E) extra length drill bit conforming to DIN 1869 Series 235 specifications in cast iron, steel, and aluminum workpiece applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a drill chuck or collet rated for the 6.35 mm straight-cylindrical shank and confirm runout before drilling. Ensure the workpiece is properly fixtured before engaging the spindle, particularly for deep hole operations where bit deflection risk increases. A machinist or qualified tool operator should set appropriate feed and speed parameters for the workpiece material. Inspect the web-thinned tip for chipping or wear before each use, as extra length bits are more susceptible to deflection-related damage than jobber-length bits.\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: 215 mm (approximately 8.46 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 150 mm (approximately 5.91 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 5.531 inches (140.48 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.35 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 65 mm (approximately 2.56 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\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\u003eWeb Treatment\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 10xD\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\u003eSecondary Workpiece Material\u003c\/strong\u003e: Aluminum\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 1869\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 235\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.009 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: 9002350063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51742406574386,"sku":"9002350063500","price":39.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/56a41ccf3a51c16cc99036dab3d921c1_eb98e5ec-b6f6-4420-8fdd-72d2a4cefc84.jpg?v=1788837251","url":"https:\/\/voomisupply.com\/products\/guhring-9002350063500-extra-length-drill-bit-0-25in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}