{"product_id":"harvey-tool-efg0635-c6-micro-drill-bit-no-52-0-0635-in","title":"Harvey Tool EFG0635-C6 Micro Drill Bit No. 52 0.0635 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL EFG0635-C6 is a solid carbide micro drill bit designed for precision drilling in hardened steel applications. Sized at No. 52 wire gauge (0.0635 inches in diameter), it features a 140-degree drill point angle optimized for hard-material entry with reduced thrust and improved point stability. The AlTiN Nano coating provides heat resistance and extended tool life when cutting through hardened steels at elevated surface speeds. Right-hand cutting direction. Overall length is 63.00 mm with a 22.00 mm flute length. This drill is part of the Miniature High Performance Drills - Hardened Steels series and is intended for use by machinists and tool-and-die professionals working in close-tolerance applications.\u003c\/p\u003e\u003cp\u003eThis micro drill bit is suited for drilling hardened steel workpieces in both production and maintenance machining environments. Its small diameter and solid carbide construction make it a practical choice for mold and die work, precision component manufacturing, and other applications where tight hole tolerances and hard material properties demand a purpose-built cutting tool. The h6 diameter tolerance on the shank ensures consistent seating in standard collet chucks and toolholding systems. A 3.00 mm shank diameter allows compatibility with metric collet systems commonly used in CNC machining centers and high-speed drilling fixtures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNo. 52 wire gauge diameter: 0.0635 inches for precise micro-hole sizing\u003c\/li\u003e\n\u003cli\u003e140-degree drill point angle reduces thrust and improves penetration in hardened materials\u003c\/li\u003e\n\u003cli\u003eAlTiN Nano coating increases heat resistance and extends tool life in hardened steel cutting\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction provides rigidity and wear resistance at small diameters\u003c\/li\u003e\n\u003cli\u003eSpiral flute geometry promotes chip evacuation in deep micro-drilling operations\u003c\/li\u003e\n\u003cli\u003eh6 shank diameter tolerance ensures accurate, repeatable toolholder seating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling hardened steel as both primary and secondary workpiece material. Part of the HARVEY TOOL Miniature High Performance Drills - Hardened Steels series. Compatible with metric collet toolholding systems accepting a 3.00 mm shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this tool should be performed by qualified machinists familiar with high-speed micro-drilling operations. Ensure the toolholder and spindle are clean and properly seated before engaging the workpiece. Power down and de-energize the machine before changing tooling. Do not exceed the recommended operating parameters for the machine spindle and workpiece material — consult the machine tool manufacturer and cutting tool data for appropriate speeds and feeds.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 52\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0635 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\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 Nano\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 63.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 22.00 mm (0.8660 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hardened Steel\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: EFG0635-C6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51727378809138,"sku":"EFG0635-C6","price":102.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8a869270febdc06239b31c7c3beedc35.jpg?v=1788676995","url":"https:\/\/voomisupply.com\/products\/harvey-tool-efg0635-c6-micro-drill-bit-no-52-0-0635-in","provider":"Voomi Supply","version":"1.0","type":"link"}