{"product_id":"hertel-30003100-circuit-board-drill-bit-size-68-solid-carbide","title":"Hertel 30003100 Circuit Board Drill Bit Size 68 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 30003100 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit board fabrication and related small-hole applications. Built to wire gauge size 68, it measures 0.0310 inches (0.79 mm) in diameter with a 118-degree drill point angle. The fast spiral flute geometry and 35-degree helix angle promote efficient chip evacuation, reducing heat buildup during high-speed drilling operations. The tapered web configuration adds rigidity at the cutting edge. This bit is intended for use by machinists, electronics manufacturing technicians, and precision fabricators who require tight tolerances in small-diameter drilling work.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for drilling cast iron, non-ferrous metals, and steel in addition to circuit board substrates. With a 0.5-inch flute length and 1.5-inch overall length, it fits standard drill chucks and CNC drilling spindles used in light precision machining and PCB production environments. The bright polished finish reduces friction and aids in chip flow during operation. The diameter tolerance of -0.0005 to +0.0000 inches makes it appropriate for applications where hole location and size accuracy are critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge size 68, decimal diameter 0.0310 inches (0.79 mm) for small-hole precision work\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle for positive center engagement and clean entry\u003c\/li\u003e\n\u003cli\u003eFast spiral flute with 35-degree helix angle for effective chip evacuation\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eTapered web design adds cutting-edge support and reduces deflection\u003c\/li\u003e\n\u003cli\u003eBright polished finish lowers friction and extends tool life in high-cycle applications\u003c\/li\u003e\n\u003cli\u003eDiameter tolerance of -0.0005 to +0.0000 inches for tight-tolerance hole sizing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit for precision drilling applications in circuit board fabrication, light machining, and metalworking setups that require wire gauge size 68 solid carbide tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed by machinists or PCB drilling technicians using a compatible drill chuck or CNC spindle rated for small-diameter carbide tooling. Ensure the spindle and collet are clean and concentric before seating the bit to prevent runout. Carbide bits are brittle and should not be used in setups with excessive vibration or lateral load. Follow machine manufacturer guidelines for spindle speed and feed rate when drilling the listed material types.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 68\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0310 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (mm)\u003c\/strong\u003e: 0.79 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\u003eHelix Angle\u003c\/strong\u003e: 35 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Fast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.5 inches (12.70 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\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to +0.0000 inches\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: Bright Polished\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\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 30003100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51733021524274,"sku":"30003100","price":24.01,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0cc1f525c062bdd4cb140ec404088185_6e8387c8-e0f7-4aa3-a8d4-9ebc841aae3e.jpg?v=1788750591","url":"https:\/\/voomisupply.com\/products\/hertel-30003100-circuit-board-drill-bit-size-68-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}