{"product_id":"kennametal-4151246-screw-machine-drill-bit-13-50mm-carbide","title":"Kennametal 4151246 Screw Machine Drill Bit 13.50mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4151246 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding metal-cutting applications. Built to DIN 6537K standards, it features a 140-degree split point for precise entry and reduced thrust, a multilayer TiAlN coating for heat and wear resistance, and coolant-through capability to evacuate chips and extend tool life. At 13.50 mm in diameter with a 4.2126-inch overall length, this stub-length drill is engineered for rigidity and accuracy in short-reach drilling setups. It is suited for use in CNC machining centers, drill presses, and screw machine operations where tight tolerances and consistent hole quality are required.\u003c\/p\u003e\u003cp\u003eThis drill bit is used in production machining environments where stub-length rigidity is preferred over jobber-length flexibility. Its straight-cylindrical shank at 14.00 mm diameter fits standard ER and hydraulic toolholders. The 3xD flute-to-diameter ratio and tapered web configuration make it well suited for drilling steel, stainless, cast iron, and similar ferrous materials. Coolant-through ports support both internal and external coolant delivery, making it a practical choice for high-volume hole-making operations in job shops and production facilities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction provides rigidity and wear resistance for hard-material drilling\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN coating with TiN tip for extended tool life in high-heat applications\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces entry thrust and improves centering accuracy\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports chip evacuation and thermal management\u003c\/li\u003e\n\u003cli\u003eDIN 6537K specification ensures dimensional consistency and toolholder compatibility\u003c\/li\u003e\n\u003cli\u003eTapered web and regular spiral flute geometry promote efficient chip flow\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement within the KENNAMETAL B051A-CPG series for straight-shank toolholders accepting a 14.00 mm shank diameter. Drill bit size range covered by this series is 13.50 mm to 17.00 mm (0.5000 to 0.6000 decimal inch).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician familiar with CNC or manual machine setup. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before seating the shank. Verify runout with a dial indicator after clamping, as carbide drills are sensitive to misalignment that can cause premature chipping. Follow the machine tool manufacturer guidelines and applicable shop safety protocols when setting cutting parameters.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 13.50 mm (0.5315 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 107.00 mm (4.2126 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 60.00 mm (2.3622 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 43.00 mm (1.6929 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 14.00 mm (0.5512 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\u003eDrill Point Length\u003c\/strong\u003e: 2.33 mm (0.0916 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\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine Length)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.0007 to 0.0000 inches (-0.018 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: B051A-CPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.37 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 4151246\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51731759464754,"sku":"4151246","price":340.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3f898dcd137365e8ace0ff8fd5519cea.jpg?v=1788734629","url":"https:\/\/voomisupply.com\/products\/kennametal-4151246-screw-machine-drill-bit-13-50mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}