{"product_id":"kennametal-4151150-screw-machine-drill-bit-6-20mm-carbide","title":"Kennametal 4151150 Screw Machine Drill Bit 6.20mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4151150 is a screw machine length (stub) drill bit engineered for precision hole-making in demanding machining environments. Built from solid carbide and coated with a multilayer TiAlN finish at the tip, this bit delivers extended tool life in ferrous and non-ferrous materials. It measures 6.20 mm in diameter with an overall length of 79.00 mm (3.1102 inches) and features a 140-degree standard point angle for accurate self-centering entry. Two regular spiral flutes with a tapered web configuration promote efficient chip evacuation. Coolant-through capability makes it well suited for high-speed CNC drilling operations where heat management is critical.\u003c\/p\u003e\u003cp\u003eThis drill bit is designed for stub-length drilling applications where rigidity and accuracy take priority over depth reach. The maximum drilling depth is 24.00 mm (0.9449 inches), making it appropriate for through-holes and shallow blind holes in precision machined components. It fits machining centers, CNC lathes, and gang drilling setups that require consistent, repeatable bore diameters. The straight cylindrical shank diameter of 8.00 mm fits standard drill chucks and collet systems. The Series B051A-CPG designation and DIN 6537K specification make this a recognized standard in industrial tooling. Machinists and CNC setup technicians working in job shops, aerospace, automotive, and general manufacturing environments will find this a reliable production drill.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in production drilling\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN tip coating extends tool life under high-speed cutting conditions\u003c\/li\u003e\n\u003cli\u003e140-degree point angle promotes accurate entry and reduces walking on entry\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports high-feed machining and effective heat dissipation\u003c\/li\u003e\n\u003cli\u003eTapered web configuration aids chip flow and reduces thrust force\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537K specification for interchangeable tooling standardization\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or production tooling option for CNC machining centers and drill presses requiring a stub-length solid carbide drill in the 5.00 to 6.50 mm diameter range per DIN 6537K specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify chuck or collet bore matches the 8.00 mm shank diameter before seating the bit to prevent runout. When using the coolant-through feature, confirm the machine tool coolant circuit is compatible and set to the appropriate flow rate for the material being drilled.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 6.20 mm (0.2441 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 79.00 mm (3.1102 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 34.00 mm (1.3386 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 24.00 mm (0.9449 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm (0.3150 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36.00 mm (1.4173 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 1.04 mm (0.0409 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\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\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: TiAlN Multilayer (Tip)\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: -0.015 to 0.000 mm (-0.0006 to 0.0000 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 5.00 to 6.50 mm (0.2000 to 0.2500 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: 0.08 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: 4151150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743244812594,"sku":"4151150","price":159.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/608df206fa826695c15e10f2ba1d8263.jpg?v=1788844439","url":"https:\/\/voomisupply.com\/products\/kennametal-4151150-screw-machine-drill-bit-6-20mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}