{"product_id":"kennametal-4149490-taper-length-drill-bit-3mm-carbide","title":"Kennametal 4149490 Taper Length Drill Bit 3mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4149490 is a solid carbide taper length drill bit in the B053A-CPG series, engineered for precision drilling in ferrous and hardened materials. The bit features a multilayer TiAlN (titanium aluminum nitride) coating that extends tool life under high-heat cutting conditions. With a 140-degree point angle and right-hand spiral flute geometry, it produces clean entry and efficient chip evacuation. A coolant-through design channels cutting fluid directly to the tip, supporting deep-hole drilling performance. Qualified machinists and tooling professionals working in CNC machining centers or drill press applications are the primary users of this drill.\u003c\/p\u003e\u003cp\u003eThis taper length drill bit is suited for precision machining operations where hole diameter consistency and surface finish are critical. The 3 mm diameter (0.1181 inches) and 8xD flute-to-diameter ratio make it appropriate for applications requiring moderate hole depths in tight-tolerance environments. It conforms to DIN 6537K specification, making it a recognized standard format for industrial tooling setups. The straight cylindrical shank fits standard collet and chuck systems used in CNC and manual drilling equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction in material grade KC7325 for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN coating for extended tool life at elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003e140-degree standard point angle for accurate positioning and reduced thrust\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports deep-hole drilling and chip flushing\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, regular spiral flute for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537K specification for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard collet chucks and drill chucks accepting a 6 mm straight cylindrical shank, compatible with CNC machining centers and manual drill presses configured for small-diameter solid carbide tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes should be performed by qualified machinists with the machine in a fully stopped and locked-out state. Ensure the collet or chuck bore is clean and free of debris before seating the straight shank. Solid carbide tooling is brittle  -  avoid side loading, interrupted cuts, or excessive runout that can cause chipping or fracture. Confirm coolant-through passages in the spindle are clear and delivering adequate flow before beginning deep-hole drilling cycles.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B053A-CPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 3 mm (0.1181 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\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 Length\u003c\/strong\u003e: 40 mm (1.5748 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\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\u003eOverall Length\u003c\/strong\u003e: 78 mm (3 inches)\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: 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\u003eMaximum Drilling Depth\u003c\/strong\u003e: 33 mm (1.2992 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 0.48 mm (0.0191 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.010 to 0.000 mm (-0.0004 to 0.0000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Number\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 8 inches L x 0.8 inches W x 0.8 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 4149490\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51740133720370,"sku":"4149490","price":219.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/135438d4529021309200afdc88667d72.jpg?v=1788822703","url":"https:\/\/voomisupply.com\/products\/kennametal-4149490-taper-length-drill-bit-3mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}