{"product_id":"accupro-a-6120077r-micro-drill-bit-0-77-mm-solid-carbide","title":"Accupro A-6120077R Micro Drill Bit 0.77 Mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO A-6120077R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. With a 0.77 mm diameter (0.0303 inches) and a 120-degree point angle, this bit delivers accurate hole entry and clean penetration in hard and abrasive materials. The bright uncoated finish suits applications where coating interaction with the workpiece is a concern. At 30 mm overall length with a 4.20 mm flute length, this miniature-series bit is built for controlled, short-run drilling where runout and deflection must be minimized. Installation and use typically fall to machinists, toolmakers, and precision fabricators working on small-component production.\u003c\/p\u003e\n\u003cp\u003eThis micro drill bit is suited for precision machining operations requiring very small hole diameters, including work on circuit boards, instrument components, watch parts, medical device components, and other miniature assemblies. The straight-cylindrical shank with a 1.50 mm shank diameter seats securely in collet chucks and precision drill chucks. The right-hand spiral flute geometry evacuates chips efficiently during through-hole and blind-hole drilling in metals, plastics, and composite materials where tight diameter tolerances are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e0.77 mm diameter with 120-degree standard point angle for accurate hole entry\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish compatible with a wide range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eSpiral flute, right-hand cut geometry promotes clean chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 1.50 mm diameter for secure collet chuck retention\u003c\/li\u003e\n  \u003cli\u003e30 mm overall length with 4.20 mm flute length for controlled depth drilling in miniature applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style miniature-series micro drill bit suitable for use in precision collet chucks and drill chucks that accept a 1.50 mm straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists and precision tooling technicians using CNC machining centers, drill presses, or precision hand-held rotary tools equipped with appropriate collet sizes. Ensure the machine spindle is fully stopped and locked before changing or seating the bit. At sub-millimeter diameters, excessive feed rate or lateral force will cause bit breakage — follow the machine manufacturer and tooling guidelines for feed and speed at this diameter range. Secure the workpiece firmly before drilling to prevent deflection that can damage the bit or compromise hole accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.77 mm (0.0303 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 120 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\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 30 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.50 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Miniature\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: 0.25 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 1.75 inches x 2.25 inches x 0.25 inches\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: ACCUPRO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A-6120077R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51730062704946,"sku":"A-6120077R","price":195.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/26f418d5d7f3e8c2e08edefe27da1c07.jpg?v=1788711053","url":"https:\/\/voomisupply.com\/products\/accupro-a-6120077r-micro-drill-bit-0-77-mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}