{"product_id":"guhring-9038990009100-micro-drill-bit-wire-64-carbide","title":"Guhring 9038990009100 Micro Drill Bit Wire 64 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9038990009100 is a solid carbide micro drill bit designed for precision drilling in ferrous metals and cast iron. It features a 140-degree faceted point angle with web thinning for clean entry and reduced thrust, and a TiAlN coating for extended tool life in abrasive and high-heat applications. The bit runs a right-hand spiral flute and carries a straight-cylindrical shank with a shank diameter of 3.00 mm. Overall length is 38.00 mm. This drill is intended for use by machinists and toolroom technicians working to tight tolerances in production or maintenance environments.\u003c\/p\u003e\u003cp\u003eThis micro drill is suited for precision work in cast iron and steel (material grades K and P). It is appropriate for CNC machining centers, drill presses, and manual operations requiring tight hole geometry. With a 5xD flute-to-diameter ratio and a maximum drilling depth of 8.64 mm (0.3400 inches), it handles moderate-depth micro holes without coolant-through capability, relying on proper chip evacuation technique and compatible cutting fluids applied externally.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction, material grade K40, for rigidity and wear resistance in micro drilling\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends tool life in high-temperature and abrasive cutting conditions\u003c\/li\u003e\n\u003cli\u003e140-degree faceted point with web thinning reduces entry thrust and improves hole accuracy\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute promotes chip evacuation in cast iron and steel\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank, 3.00 mm diameter, compatible with standard collet chucks\u003c\/li\u003e\n\u003cli\u003eh7 shank diameter tolerance ensures consistent fit and runout control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard production micro drill for use in applications requiring a wire size 64 (0.0358 inch \/ 0.91 mm) hole diameter, compatible with collet systems accepting a 3.00 mm straight-cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation should be performed by qualified machinists or toolroom technicians familiar with micro-diameter tooling. Secure the shank fully in a precision collet or drill chuck and verify runout before cutting, as micro drills are sensitive to misalignment. Apply a compatible external cutting fluid for the workpiece material and use appropriate feed and speed settings to avoid drill deflection or breakage. Inspect the drill point for wear or chipping before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 64\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0358 inches\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\/Finish\u003c\/strong\u003e: TiAlN\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\u003eFlute Length\u003c\/strong\u003e: 10.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38.00 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: 3.00 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\u003eMaximum Drilling Depth\u003c\/strong\u003e: 8.64 mm (0.3400 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: h7\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\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: 9038990009100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51730435047730,"sku":"9038990009100","price":48.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a3b1ff8f610a0e8d8a5a6079767ab2b1_dd900f20-606e-40aa-b8d3-4b5936bf2037.jpg?v=1788717404","url":"https:\/\/voomisupply.com\/products\/guhring-9038990009100-micro-drill-bit-wire-64-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}