{"product_id":"hertel-83246009-solid-carbide-jobber-drill-bit-no-78","title":"Hertel 83246009 Solid Carbide Jobber Drill Bit No. 78","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 83246009 is a solid carbide jobber-length drill bit in wire gauge size No. 78, equivalent to 0.0160 inches in decimal diameter. Built for precision drilling in hard and abrasive materials, it features a 118-degree standard point angle with web thinning for reduced thrust and cleaner entry. The bright finish leaves the carbide substrate exposed for maximum hardness. At 0.75 inches overall length with a 0.1875-inch flute length, this is a small-format bit designed for tight-tolerance work in electronics, instrument manufacturing, tool and die, and precision machining applications. A licensed machinist or tool-and-die technician is the typical end user.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for drilling small-diameter holes in ferrous and non-ferrous metals, PCB materials, hard plastics, and composite substrates where high-speed steel bits lack the hardness or edge retention required. The straight cylindrical shank fits standard collets, chucks, and micro-drill spindles used on CNC machining centers, drill presses, and precision benchtop units. Its general-purpose grade C2 carbide formulation covers a broad range of work materials at moderate to high spindle speeds typical of fine-diameter drilling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for superior hardness and wear resistance compared to HSS\u003c\/li\u003e\n  \u003cli\u003eNo. 78 wire size, 0.0160 inch decimal diameter with a tight tolerance of -0.0005 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced entry thrust\u003c\/li\u003e\n  \u003cli\u003eRegular spiral, right-hand cut with two flutes for efficient chip evacuation in small bores\u003c\/li\u003e\n  \u003cli\u003eBright (uncoated) finish preserves full carbide hardness at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank seats directly in standard collets and micro-drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit drill bit for any collet or chuck system accepting a 0.0160-inch straight cylindrical shank, including CNC machining centers, drill presses, and benchtop micro-drill units used in general-purpose precision drilling operations.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or tooling technician. Secure the straight shank fully in a properly sized collet or drill chuck before operation, and verify runout is within acceptable limits for the diameter being drilled. Power down and de-energize the spindle before changing or inspecting tooling. Carbide is brittle at this diameter — avoid side loading, interrupted cuts without proper feed rates, and contact with hard surfaces that can chip the cutting edge.\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. 78\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal Inch)\u003c\/strong\u003e: 0.0160 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.75 inches (3\/4 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0160 inches\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\u003eFinish\/Coating\u003c\/strong\u003e: Bright (Uncoated)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 83246009\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51749299978546,"sku":"83246009","price":25.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a5e4eefe04dd0450c35662095b1818b7.jpg?v=1788904246","url":"https:\/\/voomisupply.com\/products\/hertel-83246009-solid-carbide-jobber-drill-bit-no-78","provider":"Voomi Supply","version":"1.0","type":"link"}