{"product_id":"hertel-30212000-solid-carbide-circuit-board-drill-bit-no-31","title":"Hertel 30212000 Solid Carbide Circuit Board Drill Bit No. 31","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 30212000 is a solid carbide circuit board drill bit sized to No. 31 wire gauge, measuring 0.1200 inches in diameter. Designed for precision drilling in printed circuit board fabrication and electronics manufacturing, this bit features a 130-degree drill point and a fast spiral with a 35-degree helix angle that efficiently evacuates chips and reduces heat buildup. The tapered web configuration improves rigidity and point stability during entry. At 1.5 inches overall length with a 0.375-inch flute, this compact geometry suits high-speed spindle applications. Licensed machinists, electronics technicians, and precision metalworking shops are the typical users.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in benchtop drill presses, CNC drilling machines, and PCB drilling stations. Beyond circuit board work, the solid carbide construction and bright polished finish make it capable across a broad range of materials including alloy steel, carbon steel, cast iron, high-temperature alloy, stainless steel, and titanium. Its right-hand cutting direction is standard for conventional drill setups. The 0.1250-inch shank diameter fits standard collets and chucks used in precision machine shops and electronics assembly environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for extended tool life and rigidity in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e130-degree drill point angle optimized for circuit board and metalworking applications\u003c\/li\u003e\n  \u003cli\u003eFast spiral with 35-degree helix angle promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration improves point strength and reduces walking on entry\u003c\/li\u003e\n  \u003cli\u003eBright polished finish minimizes friction and aids chip flow\u003c\/li\u003e\n  \u003cli\u003eRight-hand cutting, compatible with standard spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement or standard addition for any drill press, CNC drilling machine, or PCB drilling spindle that accepts a 0.1250-inch (1\/8 inch) shank. Compatible materials include alloy steel, carbon steel, cast iron, high-temperature alloy, stainless steel, and titanium.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a collet or drill chuck rated for the 0.1250-inch shank diameter and confirm the collet is clean and properly seated before tightening. Ensure the machine spindle is fully stopped before changing bits. Use appropriate spindle speeds for carbide tooling and the workpiece material — carbide bits are brittle and can fracture if subjected to lateral loading or improper feed rates. Eye protection and chip containment are standard safety practice for any drilling operation.\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. 31\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.1200 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (mm)\u003c\/strong\u003e: 3.05 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\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\u003eShank Diameter\u003c\/strong\u003e: 0.1250 inches (1\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter (mm)\u003c\/strong\u003e: 3.18 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\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\u003eCompatible Materials\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: 0.08 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: 30212000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727302983986,"sku":"30212000","price":16.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/32f2eceb079151ed463cb286c8fc411f.jpg?v=1788676081","url":"https:\/\/voomisupply.com\/products\/hertel-30212000-solid-carbide-circuit-board-drill-bit-no-31","provider":"Voomi Supply","version":"1.0","type":"link"}