{"product_id":"accupro-a-6120255r-micro-drill-bit-2-55-mm-solid-carbide","title":"Accupro A-6120255R Micro Drill Bit 2.55 Mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ACCUPRO A-6120255R is a solid carbide micro drill bit designed for precision drilling in tight-tolerance applications. It measures 2.55 mm in diameter with a 120-degree point angle and a 38 mm overall length, placing it firmly in the miniature drill category. The bright, uncoated finish maintains dimensional accuracy at the cutting edge. Right-hand spiral fluting promotes consistent chip evacuation during through-hole and blind-hole operations. Licensed machinists, toolroom technicians, and precision fabricators rely on carbide micro drills like this one when working with hard or abrasive materials that would rapidly wear high-speed steel tooling.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for use in CNC machining centers, drill presses, and precision hand-held spindles where small-diameter hole accuracy is critical. Typical applications include circuit board drilling, watch and instrument component manufacturing, medical device fabrication, and aerospace detail work. The straight-cylindrical shank allows direct chuck mounting in standard collet or keyless drill chucks compatible with 3 mm shank diameters. The regular spiral geometry provides a balanced combination of rigidity and cutting efficiency at small diameters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e2.55 mm cutting diameter (0.1004 decimal inch) for precision micro-hole work\u003c\/li\u003e\n  \u003cli\u003eSolid carbide construction for superior hardness and wear resistance versus HSS alternatives\u003c\/li\u003e\n  \u003cli\u003e120-degree standard point angle for accurate centering and reduced thrust force\u003c\/li\u003e\n  \u003cli\u003e38 mm overall length with 14 mm flute length for controlled chip evacuation\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for consistent feed and clearance\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish maintains close tolerances at the cutting edge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in machining applications requiring a 3 mm straight-cylindrical shank micro drill bit with a 2.55 mm cutting diameter, compatible with standard collet chucks and keyless chucks sized for 3 mm shanks.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMicro drill bits at this diameter are fragile and require rigid machine setups with minimal runout to avoid breakage. Secure the shank fully in a clean, properly sized collet or chuck before operation, and confirm spindle runout is within acceptable tolerance for the diameter. Reduce feed rates and use pecking cycles to clear chips in deep-hole applications. Do not exceed the recommended speed and feed range for the material being drilled, as solid carbide micro drills are sensitive to lateral loading and vibration.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 2.55 mm (0.1004 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 14 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3 mm\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\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-6120255R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51736117870898,"sku":"A-6120255R","price":288.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d329136c8cf1a42911cceb56ac71d5da.jpg?v=1788775975","url":"https:\/\/voomisupply.com\/products\/accupro-a-6120255r-micro-drill-bit-2-55-mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}