{"product_id":"harvey-tool-fbd0492-c3-flat-bottom-micro-drill-bit","title":"Harvey Tool FBD0492-C3 Flat Bottom Micro Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL FBD0492-C3 is a solid carbide micro drill bit engineered for flat-bottom drilling in precision machining applications. With a cutting diameter of 1.25 mm (0.0492 inches) and a 180-degree flat point angle, this drill produces a true flat-bottom hole without the conical relief left by standard twist drills. The AlTiN coating provides elevated heat resistance and extended tool life in hard and abrasive workpiece materials. Right-hand cutting geometry and a spiral flute design support efficient chip evacuation in tight bores. Licensed machinists and precision CNC operators are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for precision CNC milling centers and drill presses where flat-bottom blind holes, counterbores, or recessed features are required. The 3.00 mm shank diameter accommodates standard collets and small-bore tool holders commonly found in Swiss-type lathes, micro-machining cells, and high-speed machining centers. The 8.50 mm flute length (0.3350 inches) and 50.00 mm overall length make this bit appropriate for shallow-to-moderate depth flat-bottom features in tight-tolerance components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e180-degree flat point angle produces true flat-bottom holes with no center pip\u003c\/li\u003e\n\u003cli\u003eAlTiN coating improves heat and wear resistance in hard materials\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction maintains rigidity at small diameters\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard CNC spindle rotation\u003c\/li\u003e\n\u003cli\u003eh6 diameter tolerance ensures precise fit in collet and tool holder setups\u003c\/li\u003e\n\u003cli\u003eSpiral flute geometry promotes chip evacuation in blind hole drilling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and direct-fit tool for CNC machining centers and drill presses using 3.00 mm shank collets or tool holders in the Miniature High Performance Drills - Flat Bottom Drill series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this tool should be performed by trained machinists familiar with CNC tooling setup and micro-diameter drill handling. Secure the 3.00 mm shank in a collet or tool holder rated for the intended spindle speed before operation. Ensure the machine spindle is fully stopped and the control is in a safe state before installing or removing the bit. Avoid side-loading or prying forces on the shank, as micro-diameter carbide tools are brittle and susceptible to fracture under lateral stress.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 50.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 8.50 mm (0.3350 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 180 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Flat-Bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: FBD0492-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51744527810866,"sku":"FBD0492-C3","price":97.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/15b9d646d7e7077302d9b595b3bc8461_698022c6-6e46-4a27-9618-53deae4d67c1.jpg?v=1788857554","url":"https:\/\/voomisupply.com\/products\/harvey-tool-fbd0492-c3-flat-bottom-micro-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}