{"product_id":"guhring-9055250063500-extra-length-carbide-drill-bit","title":"Guhring 9055250063500 Extra Length Carbide Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9055250063500 is a solid carbide extra length drill bit designed for demanding hole-making applications in metalworking environments. Built from submicron-grade carbide and coated with FIREX finish, this bit delivers extended tool life and heat resistance in high-performance drilling operations. It measures 0.25 inches (1\/4 inch, Letter E) in cutting diameter with a 140-degree drill point angle, spiral flute configuration, and through-coolant capability. The straight-cylindrical shank measures 0.3150 inches in diameter. Licensed HVAC, mechanical, and machining professionals working with cast iron, steel, aluminum, and titanium alloys will find this tool well-suited to production and maintenance drilling tasks.\u003c\/p\u003e\u003cp\u003eThe 9055250063500 belongs to Guhring Series 5525, an extra length drill platform engineered for deep-hole drilling in ferrous and non-ferrous metals. The 12xD flute-to-diameter ratio and overall length of approximately 5.75 inches (146 mm) support reach into deep bores that standard-length drills cannot access. Maximum drilling depth reaches 3.877 inches (98.48 mm). Primary workpiece materials include cast iron and steel (ISO material codes K and P). Secondary materials include aluminum and titanium alloys (ISO codes H, M, N, and S). The web-thinned, tapered web configuration and self-centering facet point reduce entry force and improve hole location accuracy.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid submicron carbide construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eFIREX coating provides high-temperature resistance and reduced friction during cutting\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design supports chip evacuation and thermal management in deep-hole drilling\u003c\/li\u003e\n\u003cli\u003e140-degree drill point with web thinning for self-centering entry and reduced thrust force\u003c\/li\u003e\n\u003cli\u003e12xD flute length ratio allows drilling to a maximum depth of 3.877 inches (98.48 mm)\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank compatible with standard collet and drill chuck toolholding\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting, two-flute spiral configuration for efficient chip removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a Series 5525 extra length carbide drill bit conforming to DIN 6537 standards. Suitable for use in CNC machining centers, drill presses, and manual machines equipped with toolholding that accepts a 0.3150-inch straight-cylindrical shank. Rated for primary use in cast iron and steel, with secondary suitability in aluminum and titanium alloys per ISO workpiece material codes listed in the specifications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with carbide tooling and machine setup. Ensure the spindle and toolholder are clean and free of runout before seating the shank. Through-coolant supply should be confirmed and active before initiating deep-hole drilling cycles to prevent chip packing and thermal damage. Carbide tooling is brittle — avoid side-loading, interrupted cuts without appropriate feed adjustments, or improper clamping that induces shank movement.\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, Letter E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\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: FIREX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 146 mm (approximately 5.75 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 108 mm (approximately 4.25 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3150 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm (approximately 1.42 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3.877 inches (98.48 mm)\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\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 12xD\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\u003ePoint Type\u003c\/strong\u003e: Standard, Facet Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel (ISO K, P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Aluminum, Titanium Alloy (ISO H, M, N, S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 5525\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN 6537, California Prop 65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 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: 9055250063500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51755607589170,"sku":"9055250063500","price":409.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/45bf36016354e38a90a6a236b9922ced.jpg?v=1788956794","url":"https:\/\/voomisupply.com\/products\/guhring-9055250063500-extra-length-carbide-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}