{"product_id":"hertel-30002250-circuit-board-drill-bit-size-74-solid-carbide","title":"Hertel 30002250 Circuit Board Drill Bit Size 74 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 30002250 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and electronics assembly applications. Built to wire size 74, it measures 0.0225 inches (0.57 mm) in diameter with a matching 0.57 mm shank diameter. The 118-degree drill point and fast spiral flute geometry promote clean entry and efficient chip evacuation at high spindle speeds. The tapered web configuration adds rigidity at the cutting edge, reducing deflection on small-diameter work. This bit carries a heavy-duty grade designation and a bright polished finish. It is intended for use by machinists, electronics manufacturers, and precision drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for drilling through cast iron, non-ferrous metals, and steel, making it applicable beyond PCB work to any precision small-diameter drilling task in light manufacturing or toolroom environments. The 3\/8-inch flute length and 1-1\/2-inch overall length are sized for use in CNC drilling machines, drill presses, and precision hand-held fixtures where a standard shank diameter of 0.57 mm is required. The right-hand cutting direction is compatible with standard clockwise spindle rotation. The 35-degree helix angle supports fast chip removal in through-hole drilling operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWire size 74 diameter: 0.0225 inches (0.57 mm) for precision small-hole drilling\u003c\/li\u003e\n  \u003cli\u003e118-degree drill point angle for clean, accurate entry on hard materials\u003c\/li\u003e\n  \u003cli\u003eFast spiral flute with 35-degree helix angle promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction provides rigidity and wear resistance in demanding applications\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration reduces deflection at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eBright polished finish; right-hand cutting direction for standard spindle use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in materials including cast iron, non-ferrous metals, and steel. Compatible with CNC drilling spindles and precision drill presses accepting a 0.57 mm shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and service this bit only while the machine spindle is fully powered down and locked out per applicable machine safety procedures. Use an appropriate collet or chuck rated for the 0.57 mm shank diameter to ensure secure clamping and prevent runout. Handle solid carbide tooling carefully to avoid chipping the flute edges. Verify spindle RPM is appropriate for the workpiece material and bit diameter before engaging the cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 74\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0225 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 0.57 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\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0224 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (mm)\u003c\/strong\u003e: 0.57 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.375 inches (9.53 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\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\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\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\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: 30002250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51750712475954,"sku":"30002250","price":23.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5cfd6445dbe1462ca9735020c7318af3.jpg?v=1788918880","url":"https:\/\/voomisupply.com\/products\/hertel-30002250-circuit-board-drill-bit-size-74-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}