{"product_id":"kennametal-4149143-micro-drill-bit-1-50mm-solid-carbide","title":"Kennametal 4149143 Micro Drill Bit 1.50mm Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4149143 is a solid carbide micro drill bit designed for precision small-diameter drilling in demanding machining applications. At 1.50 mm (0.0591 inches) in diameter, it features a 140-degree drill point angle and a TiAlN (titanium aluminum nitride) coating that extends tool life in high-temperature cutting environments. The bit measures 58.00 mm (2.2835 inches) overall length with a 12.00 mm (0.4724 inches) spiral flute length. Coolant-through construction supports internal coolant delivery, improving chip evacuation and thermal management during deep-hole drilling. This tool is intended for use by machinists and tooling professionals in CNC and precision drilling operations.\u003c\/p\u003e\n\u003cp\u003eThe 4149143 is built for high-precision micro drilling in ferrous and non-ferrous materials where tight tolerances are required. The straight-cylindrical shank at 4.00 mm diameter seats securely in standard drill chucks and collet holders. With a maximum drilling depth of 9.00 mm and a tapered web configuration, this bit maintains rigidity and cutting stability at small diameters. It conforms to DIN 6537K specification, making it a recognized standard geometry suitable for production and toolroom environments where dimensional consistency is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for maximum rigidity and wear resistance at micro-drill diameters\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating provides thermal protection and extended tool life in high-speed cutting\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports internal coolant delivery for chip evacuation and heat management\u003c\/li\u003e\n  \u003cli\u003e140-degree drill point angle reduces thrust force and suits a wide range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eTapered web configuration improves core strength and drilling stability\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for consistent geometry and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003ePart of the KENNAMETAL Series B052A-CPG micro drill line. Designed for use in standard straight-bore collet chucks and drill holders accepting a 4.00 mm straight-cylindrical shank. Suitable for CNC machining centers and drill presses configured for precision micro drilling.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Confirm the holder or collet bore matches the 4.00 mm shank diameter before seating the bit to ensure proper runout. Do not exceed the manufacturer-rated maximum drilling depth of 9.00 mm per pass. Use appropriate coolant pressure compatible with coolant-through tooling to prevent chip packing and premature tool wear.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1.50 mm (0.0591 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 58.00 mm (2.2835 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 12.00 mm (0.4724 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 28.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 9.00 mm\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: TiAlN\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.014 to 0.000 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B052A-CPG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification Number\u003c\/strong\u003e: DIN 6537K\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: 0.03 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4149143\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739450966322,"sku":"4149143","price":156.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ddb41aa078c2fbaffbd1fc6beab10648.jpg?v=1788814744","url":"https:\/\/voomisupply.com\/products\/kennametal-4149143-micro-drill-bit-1-50mm-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}