{"product_id":"harvey-tool-cht0292-c3-micro-drill-bit-0-0292-in-carbide","title":"Harvey Tool CHT0292-C3 Micro Drill Bit 0.0292 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HARVEY TOOL CHT0292-C3 is a solid carbide micro drill bit designed for precision drilling in prehardened mold steels and similarly hard ferrous materials. Built to wire gauge No. 69 with a decimal diameter of 0.0292 inches, this bit carries a 140-degree drill point angle optimized for hard material entry and reduced walking on tight-tolerance work. The AlTiN coating adds surface hardness and thermal resistance, extending tool life in demanding cutting conditions. With an overall length of 50.00 mm and a spiral flute design, it suits high-RPM spindle applications where small-diameter accuracy is critical.\u003c\/p\u003e\u003cp\u003eThis drill bit is part of the Miniature High Performance Drills - Prehardened Steels series, built for machinists and toolmakers working in mold and die applications, precision component manufacturing, and tight-tolerance production environments. It is particularly suited for CNC machining centers and precision drill presses where repeatable hole geometry in hardened workpiece materials is required. The right-hand cutting direction and h6 shank tolerance ensure consistent chuck engagement and minimal runout in close-tolerance toolholding systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge No. 69 diameter — 0.0292 inches — for micro-scale precision drilling\u003c\/li\u003e\n\u003cli\u003e140-degree drill point angle engineered for hard material penetration and accurate hole location\u003c\/li\u003e\n\u003cli\u003eAlTiN coating provides elevated heat resistance and extended tool life in hardened steels\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction delivers rigidity and wear resistance in abrasive workpiece materials\u003c\/li\u003e\n\u003cli\u003eSpiral flute geometry promotes chip evacuation in deep or blind-hole applications\u003c\/li\u003e\n\u003cli\u003eh6 shank diameter tolerance ensures precise fitment in collet and toolholder systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in prehardened mold steels as the primary workpiece material, consistent with the Miniature High Performance Drills - Prehardened Steels series designation. Suitable for CNC machining centers and precision drill presses accepting a 3.00 mm shank diameter with h6 tolerance toolholding.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this tool should be performed by qualified machinists familiar with small-diameter carbide tooling. Power down and lock out the spindle before mounting or removing the bit. Use a precision collet or toolholder rated for the 3.00 mm shank to minimize runout — standard drill chucks are not recommended for carbide micro drills at this diameter. Carbide is brittle; avoid side loads, interrupted cuts without appropriate feed reduction, and any impact that could chip the cutting edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: No. 69\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0292 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 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: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.394 inches (10.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.969 inches (50.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: h6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Pre-Hardened Mold Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: HARVEY TOOL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: CHT0292-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51753250259250,"sku":"CHT0292-C3","price":94.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3b4e01011456b533fc08d8c181e8d8f0_393ac795-d72f-4712-ac55-fdc75cf48428.jpg?v=1788934448","url":"https:\/\/voomisupply.com\/products\/harvey-tool-cht0292-c3-micro-drill-bit-0-0292-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}