{"product_id":"harvey-tool-20138-c3-micro-drill-bit-0-0138-in-carbide","title":"Harvey Tool 20138-C3 Micro Drill Bit 0.0138 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HARVEY TOOL 20138-C3 is a solid carbide micro drill bit designed for high-precision drilling in tight-tolerance applications. It features a 0.0138-inch diameter cutting tip, a 130-degree split point, and a spiral flute geometry that promotes chip evacuation in small-diameter holes. The AlTiN coating provides heat resistance and extended tool life in ferrous and hardened materials. With an overall length of 1.5 inches and a 1\/8-inch shank diameter, this bit is sized for use in CNC machining centers, micro drill presses, and precision hand-held spindles operated by machinists and tool-and-die technicians.\u003c\/p\u003e\n\u003cp\u003eThis micro drill bit is suited for precision drilling operations in metals, composites, and hard plastics where small hole diameters and tight tolerances are required. Typical applications include PCB manufacturing, medical device components, mold and die work, and aerospace detail parts. The right-hand cut spiral flute design is compatible with standard right-hand spindle rotation. The 0.27-inch flute length limits drilling depth but maximizes rigidity at this diameter, reducing deflection and breakage in production environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.0138-inch cutting diameter for micro-scale hole applications\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance at small diameters\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating increases heat resistance and extends tool life in ferrous materials\u003c\/li\u003e\n  \u003cli\u003e130-degree point angle reduces thrust force and improves hole entry accuracy\u003c\/li\u003e\n  \u003cli\u003eSpiral flute geometry assists chip evacuation in blind and through holes\u003c\/li\u003e\n  \u003cli\u003e1\/8-inch shank diameter fits standard micro drill chucks and collets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CNC machining centers, drill presses, and precision spindle setups equipped with a 1\/8-inch collet or drill chuck accepting right-hand cut tooling in the HARVEY TOOL Miniature Drills series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this tool should be performed by qualified machinists familiar with micro-diameter tooling. Confirm spindle runout is within acceptable limits before use, as excessive runout significantly increases breakage risk at this diameter. Power down and lock out the spindle before changing or inspecting the bit. Do not exceed the manufacturer-recommended feed and speed parameters for the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0138 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.27 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\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: HARVEY TOOL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20138-C3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HARVEY TOOL","offers":[{"title":"Default Title","offer_id":51733691105586,"sku":"20138-C3","price":44.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/359e640565fe94dcfe38c070c34c85c9_17b8be12-70aa-433c-90be-47a5fc776b53.jpg?v=1788758274","url":"https:\/\/voomisupply.com\/products\/harvey-tool-20138-c3-micro-drill-bit-0-0138-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}