{"product_id":"kennametal-4151229-carbide-drill-bit-12mm-140-deg","title":"Kennametal 4151229 Carbide Drill Bit 12mm 140 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4151229 is a screw machine length (stub length) solid carbide drill bit designed for high-productivity drilling in ferrous and non-ferrous materials. The bit features a multilayer TiAlN coating with a TiN tip, a 140-degree point angle, and a right-hand cutting direction with a regular spiral flute. At 4.0157 inches overall length and 12.00 mm in diameter, this compact drill fits standard straight-shank toolholders and is well suited for applications where rigidity and chip evacuation are critical. Coolant-through capability supports higher feed rates and extended tool life in production environments. This bit is installed and used by machinists and CNC tooling professionals.\u003c\/p\u003e\u003cp\u003eThis drill bit is built for stub-length drilling applications in machining centers, CNC mills, and drill presses where minimal overhang reduces deflection. The 3xD flute-to-diameter ratio and 40.00 mm maximum drilling depth make it appropriate for through-hole and blind-hole operations in steel, cast iron, aluminum, and similar materials. The DIN 6537K specification ensures dimensional consistency for toolcrib standardization. Series B051A-CPG identifies the Kennametal product family for this geometry and coating combination.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard materials\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN coating with TiN tip for heat resistance and extended cutting life\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces thrust force and improves centering\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports high feed rates and deep-hole chip flushing\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank with 12.00 mm diameter fits standard collets and chucks\u003c\/li\u003e\n\u003cli\u003eDIN 6537K specification for dimensional interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a DIN 6537K stub-length drill for use in standard 12.00 mm straight-shank toolholders, collet chucks, and hydraulic chucks on CNC machining centers and drill presses. Compatible with the Kennametal B051A-CPG series tooling family.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed by machinists and CNC tooling technicians. Always de-energize and lock out the machine before changing tooling. Confirm the shank diameter matches the collet or chuck bore before seating. Verify coolant-through lines are clear and properly connected before running at elevated feed rates. Follow the machine manufacturer guidelines and applicable shop safety codes when setting speeds and feeds.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 12.00 mm (0.4724 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 102.00 mm (4.0157 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 55.00 mm (2.1654 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 12.00 mm (0.4724 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 45.00 mm (1.7717 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 40.00 mm (1.5748 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 2.06 mm (0.0811 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\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: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Multilayer TiAlN with TiN Tip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.018 to 0.000 mm (-0.0007 to 0.0000 inches)\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: B051A-CPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.27 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: 4151229\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51748294295858,"sku":"4151229","price":248.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b9246772a75999eb5b2d071cdd2bad68.jpg?v=1788891922","url":"https:\/\/voomisupply.com\/products\/kennametal-4151229-carbide-drill-bit-12mm-140-deg","provider":"Voomi Supply","version":"1.0","type":"link"}