{"product_id":"kennametal-4149191-solid-carbide-jobber-drill-3-90-mm","title":"Kennametal 4149191 Solid Carbide Jobber Drill 3.90 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4149191 is a solid carbide jobber-length drill bit designed for high-performance drilling in metalworking applications. It measures 3.90 mm in diameter with an overall length of 74.00 mm and a flute length of 36.00 mm. The 140-degree split point reduces thrust and improves self-centering on entry. A TiAlN coating extends tool life in abrasive and heat-intensive cuts. Coolant-through capability delivers fluid directly to the cutting zone, supporting higher feed rates and longer runs without excessive heat buildup. This bit is sized at a 5xD flute-to-diameter ratio and features a tapered web configuration for added rigidity at the core.\u003c\/p\u003e\n\u003cp\u003eThis drill is suited for precision metalworking in production and maintenance environments. It is intended for use in CNC machining centers, drill presses, and other rigid setups where consistent hole quality is required. Primary workpiece materials include steel, stainless steel, cast iron, aluminum, and other non-ferrous metals. The straight cylindrical shank accepts standard collet chucks and drill chucks without adapters. It is typically installed and operated by machinists, tool-and-die professionals, and industrial maintenance technicians working in fabrication or production settings.\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 materials\u003c\/li\u003e\n  \u003cli\u003eTiAlN coating reduces heat absorption and extends cutting tool life\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle improves self-centering and reduces entry thrust\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design delivers fluid directly to the cutting edge\u003c\/li\u003e\n  \u003cli\u003eRight-hand, regular spiral flute with tapered web for core strength\u003c\/li\u003e\n  \u003cli\u003e5xD flute-by-diameter ratio supports deeper drilling with chip clearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a high-performance OEM-style jobber drill for use in rigid CNC and manual drilling setups where straight-shank tooling in the 3.90 mm diameter range is required. Compatible workpiece materials include steel, stainless steel, cast iron, aluminum, and non-ferrous alloys as specified by the manufacturer.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and operation should be performed by qualified machinists familiar with carbide tooling. Secure the straight cylindrical shank firmly in a properly sized collet or drill chuck before operation, and verify runout is within acceptable limits for the application. Carbide is brittle compared to high-speed steel  -  avoid lateral loading, interrupted cuts without proper setup, or hand-held drilling operations. Ensure coolant supply lines are functioning and delivering adequate flow to the through-coolant ports before beginning any extended drilling cycle.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 3.90 mm (0.1535 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 74.00 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 36.00 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.4688 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Aluminum, Non-Ferrous\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: 0.04 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 8.5 inches (L) x 0.8 inches (W) x 0.8 inches (H)\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: 4149191\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51742138499378,"sku":"4149191","price":156.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6047723244c39e297ff48cf30f8b8e5b_18b0fe58-c2b0-4619-9837-18a996e9a329.jpg?v=1788835500","url":"https:\/\/voomisupply.com\/products\/kennametal-4149191-solid-carbide-jobber-drill-3-90-mm","provider":"Voomi Supply","version":"1.0","type":"link"}