{"product_id":"guhring-9038990005000-micro-drill-bit-0-5mm-solid-carbide","title":"Guhring 9038990005000 Micro Drill Bit 0.5mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9038990005000 is a solid carbide micro drill bit designed for precision drilling in demanding metalworking applications. Built to Series 3899 standards, this bit features a 0.5 mm diameter with a h7 tolerance, a 140-degree faceted point, and a TiAlN coating that extends tool life in high-heat cutting conditions. The straight-cylindrical shank measures 3.0 mm in diameter, and the overall length is 38.0 mm. Web thinning reduces thrust force and improves chip evacuation in small-diameter holes. This tool is intended for use by machining professionals and toolroom technicians working in tight-tolerance environments.\u003c\/p\u003e\n\u003cp\u003eThis micro drill bit is suited for drilling cast iron and steel in production and precision machining settings. The 5xD flute-to-diameter ratio supports a maximum drilling depth of 6.25 mm. The spiral flute geometry promotes consistent chip removal during right-hand cutting operations. Typical applications include component manufacturing, fixture work, and any operation requiring repeatable, accurate small-diameter holes in ferrous materials. No coolant-through capability is present, so external coolant or cutting fluid should be used as appropriate for the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction in material grade K40 for hardness and wear resistance\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating reduces heat buildup and extends tool life in steel and cast iron\u003c\/li\u003e\n  \u003cli\u003e140-degree faceted point with web thinning for reduced thrust and accurate entry\u003c\/li\u003e\n  \u003cli\u003eh7 diameter tolerance for consistent, repeatable hole sizing\u003c\/li\u003e\n  \u003cli\u003e5xD flute ratio supports up to 6.25 mm maximum drilling depth\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 3.0 mm shank for standard collet or chuck compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard 3.0 mm straight-cylindrical collets or chucks on CNC machining centers, drill presses, and precision drilling stations. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Confirm collet or chuck runout is within acceptable limits before use, as excessive runout accelerates wear and can cause breakage in small-diameter carbide tooling. Do not exceed the maximum drilling depth of 6.25 mm. Apply external cutting fluid appropriate to the workpiece material when coolant-through is not available.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.5 mm (0.0197 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 7.0 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 6.25 mm (0.246 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.0 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: Faceted\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: K40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eSeries\u003c\/strong\u003e: 3899\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.003 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: 9038990005000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51736882413874,"sku":"9038990005000","price":47.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a3b1ff8f610a0e8d8a5a6079767ab2b1_792195ca-afef-4c2c-a024-719151d1af46.jpg?v=1788781500","url":"https:\/\/voomisupply.com\/products\/guhring-9038990005000-micro-drill-bit-0-5mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}