{"product_id":"guhring-9038990014700-micro-drill-bit-1-47mm-carbide","title":"Guhring 9038990014700 Micro Drill Bit 1.47mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9038990014700 is a solid carbide micro drill bit engineered for precision drilling in demanding industrial and machining applications. Built from K40-grade solid carbide and coated with TiAlN for elevated heat resistance and tool life, this bit delivers consistent performance in tight-tolerance operations. The 140-degree faceted point reduces thrust force and improves centering accuracy on entry. With an overall length of 38 mm and a flute length of 10 mm, the bit is designed for controlled, accurate drilling where repeatability and hole quality are critical. It is installed and used by machinists, toolroom technicians, and precision fabricators.\u003c\/p\u003e\n\u003cp\u003eThis micro drill bit is suited for drilling cast iron and steel workpieces in CNC machining centers, drill presses, and high-speed spindle applications requiring small-diameter, tight-tolerance holes. The right-hand spiral flute geometry promotes efficient chip evacuation in short-hole drilling cycles. The straight-cylindrical shank with a 3 mm diameter fits standard collet systems. Maximum recommended drilling depth is 7.80 mm, consistent with the 5xD flute-to-diameter ratio of the Series 3899 design.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eK40-grade solid carbide construction for rigidity and wear resistance in ferrous materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating extends tool life at elevated cutting temperatures\u003c\/li\u003e\n  \u003cli\u003e140-degree faceted point with web thinning reduces entry thrust and improves self-centering\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute promotes chip clearance in cast iron and steel\u003c\/li\u003e\n  \u003cli\u003eh7 diameter tolerance ensures consistent fit and hole accuracy\u003c\/li\u003e\n  \u003cli\u003e3 mm straight-cylindrical shank compatible with standard collet and chuck systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in primary workpiece materials including cast iron (material code K) and steel (material code P), within CNC and manual drilling setups accepting a 3 mm straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit should be installed by qualified machinists familiar with micro-diameter tooling and runout requirements. Ensure the spindle and collet are clean and within tolerance before seating the shank, as micro drill bits are sensitive to runout at small diameters. Power down and lock out the machine before tool changes. Do not exceed the rated maximum drilling depth of 7.80 mm without pecking cycles or additional chip-clearing passes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1.47 mm (0.0579 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 10 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 7.80 mm (0.307 inches)\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\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\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\u003eCoolant Through\u003c\/strong\u003e: No\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\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: 0.01 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: 9038990014700\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51732085309746,"sku":"9038990014700","price":48.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a3b1ff8f610a0e8d8a5a6079767ab2b1_87238936-83ea-4e14-a695-6aa2b1154700.jpg?v=1788739037","url":"https:\/\/voomisupply.com\/products\/guhring-9038990014700-micro-drill-bit-1-47mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}