{"product_id":"guhring-9006600007900-micro-drill-bit-no-68-cobalt-tin","title":"Guhring 9006600007900 Micro Drill Bit No 68 Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9006600007900 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. It carries a No. 68 wire gauge designation, equivalent to 1\/32 inch (0.0313 inch decimal), with an overall length of 0.984 inches. The 118-degree faceted point with web thinning and tapered web configuration reduces entry force and improves centering accuracy. A TiN coating extends cutting-edge life when working through abrasive or work-hardening materials. This bit is suited for machinists, toolroom technicians, and precision fabricators running high-speed or CNC drilling operations where dimensional control at small diameters is critical.\u003c\/p\u003e\u003cp\u003eThe 9006600007900 is rated primarily for aluminum and nonferrous metals (material codes K, M, N, P) and secondarily for titanium alloys (material code S). The right-hand spiral flute evacuates chips efficiently in shallow-to-moderate depth holes, with a maximum drilling depth of 0.162 inch (4.12 mm). The straight-cylindrical shank with a 1.00 mm diameter seats securely in standard collet chucks and drill chuck fixtures used in benchtop drill presses, CNC machining centers, and precision hand-held drilling equipment. Series 660 conforms to DIN 1899 specification for micro-diameter twist drills.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 68 wire gauge size, 0.0313 inch decimal diameter, 1\/32 inch fractional equivalent\u003c\/li\u003e\n\u003cli\u003e118-degree faceted point with web thinning for reduced thrust and improved self-centering\u003c\/li\u003e\n\u003cli\u003eCobalt tool material provides heat resistance for harder and abrasive workpiece materials\u003c\/li\u003e\n\u003cli\u003eTiN coating extends tool life and reduces built-up edge on nonferrous materials\u003c\/li\u003e\n\u003cli\u003eRight-hand regular spiral flute, 5xD flute-to-diameter ratio for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 1899 standard for micro-diameter twist drills\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard collet and drill chuck systems accepting a 1.00 mm straight-cylindrical shank. Primary workpiece materials are aluminum and nonferrous metals; secondary rated for titanium alloys per manufacturer material codes.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis micro drill bit should be installed by a qualified machinist or toolroom technician familiar with small-diameter tooling. Secure the straight-cylindrical shank fully in a calibrated collet or drill chuck before operation, and verify runout with appropriate gauging before cutting. Always power down and lock out the machine spindle before changing tooling. Micro-diameter drills are brittle at this size range — avoid side loading, use appropriate feed and speed settings for the workpiece material, and do not use the bit to ream or pry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 68\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Fractional)\u003c\/strong\u003e: 1\/32 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.0313 inch\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 Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN\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: 5.30 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.162 inch (4.12 mm)\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\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.004 mm\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: Aluminum (codes K, M, N, P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Titanium Alloy (code S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 660\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification\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\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: 9006600007900\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51748047683890,"sku":"9006600007900","price":304.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/536d735b022d24fbbb1fe20d681640b3.jpg?v=1788888439","url":"https:\/\/voomisupply.com\/products\/guhring-9006600007900-micro-drill-bit-no-68-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}