{"product_id":"guhring-9038990019300-micro-drill-bit-1-93mm-tialn","title":"Guhring 9038990019300 Micro Drill Bit 1.93mm Tialn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GUHRING 9038990019300 is a solid carbide micro drill bit designed for precision drilling in demanding industrial and machining applications. Built to Series 3899 specifications, this drill features a 140-degree faceted point angle and a TiAlN coating that extends tool life when cutting ferrous materials. The wire gauge size is 48, with a decimal inch diameter of 0.0760 inches and a metric diameter of 1.93 mm. Overall length is 38.00 mm, with a spiral flute geometry and a straight-cylindrical shank. A web-thinned design reduces cutting forces at entry. This tool is sized for precision work and is installed by machinists, toolroom technicians, and production drilling operators.\u003c\/p\u003e\u003cp\u003eThis micro drill bit is suited for precision drilling in cast iron and steel workpieces in both production and toolroom environments. The 5xD flute-to-diameter ratio and a maximum drilling depth of 9.11 mm (0.359 inches) make it appropriate for shallow to moderate-depth holes in tight-tolerance applications. The h7 diameter tolerance on the drill body supports accurate hole sizing in CNC machining centers, drill presses, and manual machine tools. The straight-cylindrical shank with a 3.00 mm shank diameter fits standard collet and chuck configurations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e140-degree faceted point angle reduces walking and improves entry accuracy in cast iron and steel\u003c\/li\u003e\n\u003cli\u003eTiAlN coating increases surface hardness and heat resistance during high-speed cutting\u003c\/li\u003e\n\u003cli\u003eWeb-thinned design lowers thrust force at drill entry\u003c\/li\u003e\n\u003cli\u003eh7 diameter tolerance supports tight-tolerance hole requirements\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction in K40 material grade for rigidity in micro-diameter applications\u003c\/li\u003e\n\u003cli\u003e5xD flute-to-diameter ratio with regular spiral type for efficient chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a Series 3899 OEM-specification micro drill bit for use in standard straight-cylindrical collets and drill chucks accepting a 3.00 mm shank diameter. Primary workpiece materials are cast iron (K) and steel (P).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom personnel familiar with CNC and manual drilling equipment. Ensure the machine spindle and toolholder are fully stopped and de-energized before inserting or changing the drill. Confirm collet or chuck clamping diameter matches the 3.00 mm shank before securing. Micro-diameter carbide tools are brittle — avoid side loading, interrupted cuts without appropriate feed reduction, and thermal shock from inconsistent coolant application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 48\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 1.93 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0760 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\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\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (mm)\u003c\/strong\u003e: 38.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length (mm)\u003c\/strong\u003e: 12.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth (mm)\u003c\/strong\u003e: 9.11 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth (Decimal Inch)\u003c\/strong\u003e: 0.359 inches\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 (mm)\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\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: h7\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 3899\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\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: 9038990019300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51727304818994,"sku":"9038990019300","price":49.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a3b1ff8f610a0e8d8a5a6079767ab2b1_8bcc6046-1f9a-4ff0-b9c2-d93e0690f6bb.jpg?v=1788676099","url":"https:\/\/voomisupply.com\/products\/guhring-9038990019300-micro-drill-bit-1-93mm-tialn","provider":"Voomi Supply","version":"1.0","type":"link"}