{"product_id":"kennametal-4149617-taper-length-drill-bit-4-5mm-carbide","title":"Kennametal 4149617 Taper Length Drill Bit 4.5mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4149617 is a taper length twist drill bit built for precision hole-making in demanding machining environments. Manufactured from solid carbide grade KC7325 and coated with a multilayer TiAlN finish, this bit delivers high wear resistance and heat tolerance during high-speed drilling operations. It cuts a 4.5 mm diameter hole with a 140-degree standard point angle, making it well suited for drilling into steel, stainless, cast iron, and similar ferrous materials. Coolant-through capability supports chip evacuation and thermal management at depth. Machinists and CNC operators working in production shops and job shops are the primary users of this tool.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for taper length drilling applications where extended reach beyond a jobber-length bit is required without sacrificing rigidity. The 8xD flute-length-to-diameter ratio and 49 mm flute length allow drilling to a maximum depth of 41 mm. The straight cylindrical shank at 6 mm diameter fits standard collet chucks and tool holders used on CNC machining centers, drill presses, and manual mills. It follows DIN 6537K specification, which is a common standard recognized in precision metalworking environments globally.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide KC7325 substrate for hardness and thermal stability\u003c\/li\u003e\n  \u003cli\u003eMultilayer TiAlN coating extends tool life in high-temperature cutting conditions\u003c\/li\u003e\n  \u003cli\u003e140-degree standard point angle reduces thrust force and improves centering\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports chip flushing and heat reduction at the cutting zone\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with tapered web configuration for consistent chip evacuation\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style precision drill for use in collet chucks and tool holders accepting a 6 mm straight cylindrical shank, compatible with CNC machining centers, drill presses, and milling machines set up for metalworking applications.\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 CNC or manual machine setup procedures. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Verify collet size matches the 6 mm shank diameter before tightening. When using coolant-through capability, confirm coolant supply lines are connected and pressure is within the machine and tooling specifications before initiating a cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.5 mm (0.1772 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\u003eOverall Length\u003c\/strong\u003e: 87 mm (3.4375 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 49 mm (1.9291 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 41 mm (1.6142 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6 mm (0.2362 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm (1.4173 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.74 mm (0.0293 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 8xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: KC7325\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Multilayer TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to 0.0000 inches (-0.012 to 0.000 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B053A-CPG\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: 0.06 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: 4149617\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51742531420466,"sku":"4149617","price":222.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5cd08b2d5d544bfb28965121c0413198_5787c062-09af-42bd-ba80-d0bc85124629.jpg?v=1788838019","url":"https:\/\/voomisupply.com\/products\/kennametal-4149617-taper-length-drill-bit-4-5mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}