{"product_id":"hertel-30001800-circuit-board-drill-bit-0-46mm-no-77","title":"Hertel 30001800 Circuit Board Drill Bit 0.46mm No. 77","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 30001800 is a solid carbide fast spiral drill bit designed for precision drilling in circuit board and light manufacturing applications. It carries a No. 77 wire gauge size, equivalent to 0.0180 decimal inches (0.46 mm), with a 118-degree drill point angle optimized for clean entry on small-diameter holes. The shank diameter measures 0.46 mm, the flute length is 0.25 inches, and the overall length is 1.5 inches. A 35-degree helix angle and tapered web configuration promote chip evacuation and reduce heat buildup during high-speed drilling. This bit is intended for installation by machinists, PCB fabricators, and precision drilling technicians.\u003c\/p\u003e\n\u003cp\u003eThe HERTEL 30001800 is suited for drilling cast iron, non-ferrous metals, and steel in applications where tight tolerances and small bore diameters are required. Typical use cases include circuit board fabrication, precision instrument manufacturing, and small-part production. The bright polished finish reduces friction and extends cutting life across repeated drilling cycles. The heavy-duty grade construction supports production environments where consistent hole quality at sub-millimeter diameters is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in small-diameter drilling\u003c\/li\u003e\n  \u003cli\u003eNo. 77 wire gauge size at 0.0180 inches (0.46 mm) diameter for precision bore work\u003c\/li\u003e\n  \u003cli\u003e118-degree drill point angle for clean entry and accurate hole positioning\u003c\/li\u003e\n  \u003cli\u003e35-degree helix angle with fast spiral flute design promotes efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration reduces thrust and supports straight-hole geometry\u003c\/li\u003e\n  \u003cli\u003eBright polished finish minimizes friction and extends tool life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit compatible with standard CNC drill presses, PCB drilling machines, and precision drill chucks that accept 0.46 mm shank diameters.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or PCB drilling technicians familiar with small-diameter carbide tooling. Secure the shank fully in the chuck before operation and verify runout is within acceptable tolerance to prevent bit breakage at this diameter. Carbide bits are brittle and should not be subjected to side loading or used in hand-held drilling applications. Follow machine manufacturer feed rate and RPM recommendations for carbide tooling at sub-millimeter diameters.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 77\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0180 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 0.46 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0181 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (mm)\u003c\/strong\u003e: 0.46 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches (38.10 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Fast\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to +0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy-Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metals, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright Polished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 30001800\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51734184034610,"sku":"30001800","price":23.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a18a8e4bbc153a9901c64f4547a77606.jpg?v=1788761228","url":"https:\/\/voomisupply.com\/products\/hertel-30001800-circuit-board-drill-bit-0-46mm-no-77","provider":"Voomi Supply","version":"1.0","type":"link"}