{"product_id":"kennametal-4149256-solid-carbide-jobber-drill-8-30mm","title":"Kennametal 4149256 Solid Carbide Jobber Drill 8.30mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4149256 is a solid carbide jobber-length drill bit designed for high-performance hole-making in demanding materials. It features a 140-degree split point, a multilayer TiAlN coating for heat and wear resistance, and a right-hand spiral flute geometry that promotes efficient chip evacuation. The drill measures 8.30 mm (0.3268 inches) in diameter with an overall length of 103.00 mm (4.0551 inches) and a flute length of 61.00 mm (2.4016 inches). A straight cylindrical shank, 10 mm in diameter, seats securely in standard drill chucks and collets. This drill is rated as a high-performance grade and conforms to DIN 6537K specification. It is installed by machinists and tool-and-die professionals in CNC machining centers and drill press applications.\u003c\/p\u003e\u003cp\u003eThis drill is suited for production drilling in steel, stainless steel, cast iron, aluminum, and other non-ferrous materials. The 5xD flute-to-diameter ratio and tapered web configuration make it effective for general-purpose jobber drilling where consistent hole diameter and finish are required. A through-coolant feature allows internal coolant delivery, reducing heat buildup at the cutting edge during high-speed or deep-hole operations. Typical applications include structural fabrication, precision machining, and batch-production environments where tool life and repeatability matter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in abrasive materials\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN coating extends tool life at elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces thrust force and walking on entry\u003c\/li\u003e\n\u003cli\u003eThrough-coolant capable for improved chip clearing and thermal management\u003c\/li\u003e\n\u003cli\u003eDIN 6537K compliant with tapered web for self-centering performance\u003c\/li\u003e\n\u003cli\u003eRight-hand regular spiral flute promotes smooth chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length replacement drill conforming to DIN 6537K for use in standard straight-shank drill chucks and ER collet systems. Suitable for workpiece materials including steel, stainless steel, cast iron, aluminum, and non-ferrous alloys within the 8.00 mm to 9.00 mm drill diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or qualified toolroom technician should install this drill bit in a properly rated CNC machining center, drill press, or handheld power tool with a compatible chuck or collet. Ensure the machine spindle and workpiece are secured before beginning operation. When using the through-coolant feature, verify coolant supply lines are connected and pressure is set per machine specifications before cycling. Do not exceed the manufacturer-recommended feed and speed parameters for the workpiece 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: 8.30 mm (0.3268 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\u003eOverall Length\u003c\/strong\u003e: 103.00 mm (4.0551 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 61.00 mm (2.4016 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 49.00 mm (1.9291 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 10 mm (0.2344 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 40 mm (1.5748 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 1.41 mm (0.0554 inches)\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\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\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\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: High Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Aluminum, Non-Ferrous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0006 to 0.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: 4149256\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51739734343986,"sku":"4149256","price":197.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6047723244c39e297ff48cf30f8b8e5b_27282abc-3d1c-4843-9a3a-537478ff4d55.jpg?v=1788818336","url":"https:\/\/voomisupply.com\/products\/kennametal-4149256-solid-carbide-jobber-drill-8-30mm","provider":"Voomi Supply","version":"1.0","type":"link"}