{"product_id":"kennametal-4151158-drill-bit-6-70mm-solid-carbide-140-deg","title":"Kennametal 4151158 Drill Bit 6.70mm Solid Carbide 140 Deg","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4151158 is a screw machine length (stub length) solid carbide drill bit designed for high-performance drilling in demanding production environments. Built to DIN 6537K standards, it features a 140-degree point angle for reduced thrust and improved centering, a multilayer TiAlN coating for heat resistance and extended tool life, and coolant-through capability for deep-hole applications. At 6.70 mm in diameter with an overall length of 3.1102 inches (79.00 mm), this bit is sized for precision work in tight-reach setups. It is installed and operated by machinists and CNC operators in metalworking and precision manufacturing applications.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for stub-length drilling operations in ferrous and non-ferrous metals where a shorter, more rigid tool is required to minimize deflection. The straight cylindrical shank at 8.00 mm diameter fits standard collets and drill chucks. The TiAlN coating on the tip combined with coolant-through channels makes it appropriate for high-speed machining centers and CNC drilling operations. The 3xD flute-to-diameter ratio and tapered web configuration support efficient chip evacuation in moderate-depth holes up to 24.00 mm (0.9449 inches).\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard materials\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces entry thrust and improves hole location accuracy\u003c\/li\u003e\n\u003cli\u003eMultilayer TiAlN coating extends tool life under elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports high-speed drilling and chip flushing\u003c\/li\u003e\n\u003cli\u003eDIN 6537K specification ensures dimensional consistency and interchangeability\u003c\/li\u003e\n\u003cli\u003eTapered web and regular spiral flute geometry promote reliable chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-spec stub-length drill bit in the KENNAMETAL B051A-CPG series, compatible with standard straight-shank collets and drill chucks accepting an 8.00 mm shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists using standard collet chucks or keyless drill chucks rated for the 8.00 mm straight shank. Ensure the machine spindle is fully stopped and locked out before tool changes. Verify coolant-through passages are clear and that the coolant supply pressure is within the machine tool manufacturer's specified range before running. Do not exceed the recommended maximum drilling depth of 24.00 mm per the tool geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 6.70 mm (0.2638 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\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\u003eMaximum Drilling Depth\u003c\/strong\u003e: 24.00 mm (0.9449 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\u003eDrill Point Length\u003c\/strong\u003e: 1.13 mm (0.0444 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\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\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\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\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: 0.09 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: 4151158\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51752517796146,"sku":"4151158","price":160.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6047723244c39e297ff48cf30f8b8e5b_f463f343-7ee0-4d5a-9d84-3ebea46c3892.jpg?v=1788928831","url":"https:\/\/voomisupply.com\/products\/kennametal-4151158-drill-bit-6-70mm-solid-carbide-140-deg","provider":"Voomi Supply","version":"1.0","type":"link"}