{"product_id":"hertel-30209350-no-42-solid-carbide-circuit-board-drill-bit","title":"Hertel 30209350 No. 42 Solid Carbide Circuit Board Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 30209350 is a solid carbide circuit board drill bit sized to No. 42 wire gauge (0.0935 inches decimal, 2.37 mm). It features a 130-degree split-point tip and a fast spiral flute geometry with a 35-degree helix angle, producing clean, accurate entry holes in printed circuit board material and a wide range of metallic substrates. The tapered web configuration reduces walking at entry and improves chip evacuation in tight-tolerance drilling applications. A bright polished finish limits built-up edge on non-ferrous and hard materials. The 1\/8-inch round shank seats in standard drill chucks and high-speed PCB drilling spindles alike. Installed by machinists, electronics assembly technicians, and precision fabricators.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for light-duty precision drilling in circuit board fabrication, prototype assembly, and small-hole metalworking operations. Its solid carbide construction handles demanding materials including alloy steel, carbon steel, cast iron, stainless steel, titanium, and high-temperature alloys. The short 3\/8-inch flute length and 1-1\/2-inch overall length make it appropriate for benchtop drill presses, CNC drilling centers, and hand-held high-speed rotary tools where rigidity and runout control are critical to hole quality.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eNo. 42 wire size — 0.0935 inches (2.37 mm) cutting diameter\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for hardness and heat resistance in demanding materials\u003c\/li\u003e\n  \u003cli\u003e130-degree drill point angle for aggressive penetration and reduced thrust\u003c\/li\u003e\n  \u003cli\u003eFast spiral, 35-degree helix angle promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration minimizes drill walk at entry\u003c\/li\u003e\n  \u003cli\u003eBright polished finish reduces friction and built-up edge on finished surfaces\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting direction; diameter tolerance of -0.0003 to +0.0000 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in materials including alloy steel, carbon steel, cast iron, stainless steel, titanium, and high-temperature alloys. Compatible with any drill chuck or spindle accepting a 1\/8-inch round shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSolid carbide drill bits should be installed in a balanced, runout-free chuck or collet to protect the cutting edge and maintain hole tolerance. Secure the workpiece firmly before drilling; carbide is brittle and susceptible to breakage from lateral shock or workpiece movement. Use appropriate cutting fluid or air blast for chip clearance when drilling metals. Inspect the cutting edge before each use and replace bits showing chipping or wear to maintain hole-size accuracy.\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: No. 42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0935 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 2.37 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/8 inch (0.1250 inches \/ 3.18 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3\/8 inch (0.4800 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-1\/2 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: -0.0003 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: Alloy Steel, Carbon Steel, Cast Iron, High Temperature Alloy, Stainless Steel, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 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: 30209350\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51749290377522,"sku":"30209350","price":15.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/31747659d93f6c8722df877510af1ecd.jpg?v=1788904114","url":"https:\/\/voomisupply.com\/products\/hertel-30209350-no-42-solid-carbide-circuit-board-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}