{"product_id":"kennametal-6393581-screw-machine-drill-bit-3-16-in-carbide","title":"Kennametal 6393581 Screw Machine Drill Bit 3\/16 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 6393581 is a screw machine length drill bit designed for high-performance drilling in demanding production environments. Built from solid carbide and coated with AlTiN (aluminum titanium nitride), it delivers extended tool life in hard and abrasive materials. The 140-degree split-point geometry reduces walking and improves penetration. At 2.5984 inches overall length with a 1.1024-inch flute, this stub-length bit offers rigidity and reduced deflection compared to jobber-length alternatives. It is sized at 3\/16 inch (0.1875 inch \/ 4.76 mm) diameter and is suited for use in CNC machining centers, drill presses, and screw machine applications where tight tolerances and consistent hole quality are required.\u003c\/p\u003e\u003cp\u003eThis bit fits typical screw machine and short-hole drilling applications in ferrous and non-ferrous metals, stainless steel, cast iron, and hardened alloys. The AlTiN coating performs well at elevated cutting temperatures, making it a practical choice for high-speed dry or minimal-lubrication machining. The straight cylindrical shank accepts standard drill chucks and collets. With a maximum drilling depth of 0.7874 inch (20.00 mm) and a 4xD flute-to-diameter ratio, it is best applied to shallow, precision holes in production volume work. Installation and use are performed by machinists and tool-and-die professionals.\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\u003eAlTiN coating extends tool life at elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces thrust force and minimizes bit walking on entry\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports internal coolant delivery for heat management\u003c\/li\u003e\n\u003cli\u003eRegular spiral flute promotes efficient chip evacuation in short-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank compatible with standard chucks and collets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in CNC machining centers, drill presses, and screw machines that accept a straight cylindrical shank; the 6.00 mm (0.2362 inch) shank diameter fits standard ER collets and drill chucks in that size range. Part of the Kennametal Series B210 screw machine drill line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation should be performed by qualified machinists following standard machine tool safety procedures. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Verify chuck or collet runout before use, as excessive runout accelerates wear on carbide tooling. Do not use this bit for drilling depths beyond its rated maximum of 0.7874 inch without retracting to clear chips.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 3\/16 inch (0.1875 inch \/ 4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5984 inches (66.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.1024 inches (28.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2362 inches (6.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.4173 inches (36.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.7874 inches (20.00 mm)\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: 0.0276 inches (0.70 mm)\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\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\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: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B210\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 2.68 x 0.44 x 0.44 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\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: 6393581\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51748672667954,"sku":"6393581","price":240.09,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d2099971170f190c74e1d0bc1b7020be.jpg?v=1788896457","url":"https:\/\/voomisupply.com\/products\/kennametal-6393581-screw-machine-drill-bit-3-16-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}