{"product_id":"kennametal-4150272-screw-machine-drill-bit-9-40mm-carbide","title":"Kennametal 4150272 Screw Machine Drill Bit 9.40mm Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4150272 is a screw machine length (stub) drill bit engineered for high-performance drilling in metalworking and machining applications. Built from solid carbide with a multilayer TiAlN coating, this bit delivers superior hardness and heat resistance compared to high-speed steel alternatives. It features a 140-degree split point for precise hole entry, reduced walking, and lower thrust requirements. The right-hand spiral flute geometry promotes efficient chip evacuation. At 3.5039 inches overall length with a 9.40 mm cutting diameter, this bit is suited for CNC machining centers, drill presses, and screw machine setups where rigidity and accuracy are critical.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for stub-length drilling operations where reduced overhang improves rigidity and dimensional accuracy. Typical applications include through-hole and blind-hole drilling in steel, cast iron, stainless steel, and similar ferrous materials encountered in production machining environments. The straight cylindrical shank accommodates standard drill chucks and collet systems. It conforms to DIN 6537K specifications, making it a direct fit for shops working to metric DIN tooling standards. Machinists and CNC operators in job shops, aerospace, and general manufacturing will find this bit appropriate for medium-to-hard material drilling at production volumes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for superior rigidity and wear resistance versus HSS alternatives\u003c\/li\u003e\n  \u003cli\u003eMultilayer TiAlN coating provides extended tool life in ferrous and high-temperature alloy applications\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle reduces thrust and minimizes drill walking on entry\u003c\/li\u003e\n  \u003cli\u003eStub (screw machine) length design minimizes overhang for improved hole location accuracy\u003c\/li\u003e\n  \u003cli\u003eRegular spiral flute with tapered web configuration for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for metric tooling standardization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a DIN 6537K-compliant stub drill bit in the KENNAMETAL Series B041A-CPG, suitable for use in standard drill chucks and collet holders accepting a 10.00 mm straight cylindrical shank. Fits drilling operations within the 8.00 to 9.50 mm drill bit size range category.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tool changes should be performed by a qualified machinist with the machine powered down and locked out per applicable safety procedures. Ensure the shank seating surface and chuck or collet bore are clean and free of chips before securing the bit. Do not exceed the maximum drilling depth of 35.00 mm (1.3780 inches) to avoid flute packing and tool breakage. Inspect the cutting edge and coating condition before each use, as solid carbide is brittle and susceptible to chipping from interrupted cuts or improper feeds and speeds.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 9.40 mm (0.3701 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 89.00 mm (3.5039 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 47.00 mm (1.8504 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 35.00 mm (1.3780 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10.00 mm (0.3937 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 40.00 mm (1.5748 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 1.60 mm (0.0630 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-to-Diameter Ratio\u003c\/strong\u003e: 3xD\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\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\u003eTool Material\u003c\/strong\u003e: Solid carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN multilayer (TiN tip)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B041A-CPG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 pounds\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: 4150272\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51733879488818,"sku":"4150272","price":138.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/027550a92e9fb7c9c67a753ee7e2e1a8_6bc2ea94-4f6c-4908-b93b-251e43b607c5.jpg?v=1788759726","url":"https:\/\/voomisupply.com\/products\/kennametal-4150272-screw-machine-drill-bit-9-40mm-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}