{"product_id":"guhring-9003010003300-micro-drill-bit-81-cobalt-118-point","title":"Guhring 9003010003300 Micro Drill Bit 81 Cobalt 118 Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9003010003300 is a cobalt micro drill bit engineered for precision drilling in small-diameter applications. Sized at wire gauge 81 (0.0130 inches), this bit features a 118-degree faceted point with web thinning on a tapered web configuration, which reduces entry force and improves centering at startup. The overall length is 0.984 inches with a flute length of 2.40 mm and a maximum drilling depth of 0.075 inches. Built to DIN 1899 specification, it is suited for use by machinists and tool-and-die professionals working in high-precision environments where tight tolerances and small-diameter accuracy are critical.\u003c\/p\u003e\n\u003cp\u003eThis micro drill bit is rated primarily for aluminum and secondarily for titanium alloys, making it a reliable choice for aerospace, medical device, and precision machining applications. The bright uncoated cobalt construction handles elevated cutting temperatures without coating delamination concerns. The straight-cylindrical shank with a 1.00 mm diameter seats cleanly in collet-style and drill press setups. Right-hand spiral flute geometry promotes efficient chip evacuation in blind and through-hole drilling at micro diameters. It is sold individually but requires a minimum order of 10 units per purchase.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire gauge 81 size, 0.0130 inch decimal equivalent for micro-diameter precision drilling\u003c\/li\u003e\n  \u003cli\u003e118-degree faceted point with web thinning and tapered web for reduced entry force and accurate centering\u003c\/li\u003e\n  \u003cli\u003eCobalt tool material provides heat resistance for drilling aluminum and titanium alloy workpieces\u003c\/li\u003e\n  \u003cli\u003eSpiral flute, right-hand cut geometry supports efficient chip evacuation at small diameters\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 1.00 mm shank compatible with standard collet and precision chuck setups\u003c\/li\u003e\n  \u003cli\u003eManufactured to DIN 1899 specification with diameter tolerance of +0.000 to -0.004 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision drill bit for use in collet chucks and precision drill press setups where wire gauge 81 micro-diameter drilling is required. Primary workpiece material is aluminum; secondary workpiece material is titanium alloy.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMicro drill bits at this diameter require a precision collet or chuck rated for small-shank tooling to prevent runout and bit breakage. Secure the workpiece firmly before drilling and use a drill press or CNC spindle rather than a handheld tool to maintain perpendicularity at micro diameters. Reduce feed rate and confirm spindle speed is appropriate for the workpiece material before drilling. Inspect the bit for wear or chipping before each use, as cobalt micro drills are susceptible to fracture if run at improper feed and speed combinations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 81\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0130 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\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\u003eShank Diameter\u003c\/strong\u003e: 1.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.984 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.40 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.075 inches (1.91 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.000 to -0.004 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Titanium Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 301\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification Number\u003c\/strong\u003e: DIN 1899\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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: 9003010003300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51728218194226,"sku":"9003010003300","price":171.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7f62819c278368b649e891e61c07b131.jpg?v=1788689734","url":"https:\/\/voomisupply.com\/products\/guhring-9003010003300-micro-drill-bit-81-cobalt-118-point","provider":"Voomi Supply","version":"1.0","type":"link"}