{"product_id":"guhring-9065090063500-extra-length-drill-bit-0-25in-carbide","title":"Guhring 9065090063500 Extra Length Drill Bit 0.25in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9065090063500 is a solid carbide extra length drill bit engineered for deep hole drilling in demanding production environments. It carries a TiAlN coating for heat resistance and extended tool life. The bit measures 0.25 inches (1\/4 inch) in diameter with an overall length of approximately 6.57 inches (167 mm) and a flute length of approximately 5 inches (127 mm). The 135-degree drill point angle and RT100 T point geometry reduce thrust force and improve centering at entry. Web thinning further lowers cutting resistance, making this bit well suited to high-cycle machining operations where consistent hole quality matters.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for deep hole drilling applications reaching a maximum depth of 4.625 inches (117.48 mm), or a flute-to-diameter ratio of 15xD. Primary workpiece materials include cast iron, stainless steel, and steel. Secondary materials include aluminum and titanium alloy. The straight-cylindrical shank (8 mm diameter, 36 mm shank length) fits standard toolholders with h7 tolerance. Coolant-through capability supports chip evacuation and thermal management in through-coolant spindles. This bit is used in CNC machining centers, drill presses, and production boring applications by machinists and tool-and-die professionals.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with TiAlN coating for high heat and wear resistance\u003c\/li\u003e\n\u003cli\u003e135-degree drill point angle with RT100 T point type for accurate entry and reduced thrust\u003c\/li\u003e\n\u003cli\u003eWeb-thinned geometry lowers cutting force in tough materials\u003c\/li\u003e\n\u003cli\u003eCoolant-through design aids chip evacuation in deep hole operations\u003c\/li\u003e\n\u003cli\u003e15xD flute-to-diameter ratio supports drilling depths up to 4.625 inches\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting, 2-flute spiral configuration, Series 6509\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or production tooling option for straight-cylindrical shank toolholders accepting an 8 mm shank with h7 tolerance. Suitable for machining cast iron, stainless steel, steel, aluminum, and titanium alloy workpieces in through-coolant spindle setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and locked out per facility lockout\/tagout procedures. Verify toolholder runout and clamping torque using the toolholder manufacturer specifications before operation. Confirm coolant-through channels are clear and coolant pressure is within the spindle system rating before engaging the cut. Dispose of worn or chipped carbide tooling per applicable California Proposition 65 and facility hazardous material guidelines.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.57 inches (167 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 5 inches (127 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 4.625 inches (117.48 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8 mm straight-cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: RT100 T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: h7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 15xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Aluminum, Titanium Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 6509\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: California Proposition 65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 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: 9065090063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51740104130866,"sku":"9065090063500","price":617.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/96013ea6b545bbd29c5a8217e08ae9a6_c816932f-8644-46ac-9d8f-2b5e06695d64.jpg?v=1788822318","url":"https:\/\/voomisupply.com\/products\/guhring-9065090063500-extra-length-drill-bit-0-25in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}