{"product_id":"kennametal-4149251-solid-carbide-jobber-drill-7-90mm","title":"Kennametal 4149251 Solid Carbide Jobber Drill 7.90mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4149251 is a solid carbide jobber-length drill bit with a 7.90 mm (0.3110 inch) diameter and a 140-degree point angle. It carries a multilayer TiAlN coating for extended tool life in demanding cutting applications. The overall length is 91.00 mm (3.58 inches) with a 53.00 mm (2.09 inch) flute length, and the drill features a straight cylindrical shank for use in standard drill chucks and toolholders. With coolant-through capability and a right-hand, regular spiral flute design, this bit is built for production and maintenance drilling where precision and tool longevity matter. It is designed to DIN 6537K specification.\u003c\/p\u003e\n\u003cp\u003eThis drill is suited for use in ferrous and non-ferrous materials including steel, stainless steel, cast iron, and aluminum. The 140-degree split-point geometry reduces walking and axial thrust, making it appropriate for CNC machining centers, drill presses, and manual operations in job shop, maintenance, and production environments. The 5xD flute-to-diameter ratio supports moderate-depth holes. Machinists, toolroom technicians, and maintenance professionals working in metal fabrication and industrial manufacturing are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eMultilayer TiAlN coating for high-temperature performance and extended cutting life\u003c\/li\u003e\n  \u003cli\u003e140-degree point angle reduces thrust and minimizes drill walk on entry\u003c\/li\u003e\n  \u003cli\u003eCoolant-through design supports chip evacuation and heat control in deep-hole drilling\u003c\/li\u003e\n  \u003cli\u003eRight-hand, regular spiral flute with tapered web configuration for consistent chip flow\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 6537K specification for dimensional and performance consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eCompatible with steel, stainless steel, cast iron, aluminum, and non-ferrous workpiece materials per manufacturer specification. Fits standard straight-shank toolholders and drill chucks accepting an 8 mm shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom technicians familiar with cutting tool setup. Secure the shank fully in a properly sized collet or drill chuck and verify runout before drilling. Always follow the machine tool manufacturer and cutting tool manufacturer recommendations for speeds, feeds, and coolant flow. Inspect the cutting edge for wear or chipping before each use and remove from service if damage is detected.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7.90 mm (0.3110 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\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Multilayer TiAlN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 91.00 mm (3.58 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 53.00 mm (2.09 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8 mm (0.1094 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36 mm (1.42 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 43.00 mm (1.69 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 1.34 mm (0.0526 inches)\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\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: -0.0006 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\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Aluminum and Non-Ferrous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 4149251\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743862260018,"sku":"4149251","price":176.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6047723244c39e297ff48cf30f8b8e5b_715f043d-f4b0-46c8-8e1e-28203784ad07.jpg?v=1788850494","url":"https:\/\/voomisupply.com\/products\/kennametal-4149251-solid-carbide-jobber-drill-7-90mm","provider":"Voomi Supply","version":"1.0","type":"link"}