{"product_id":"kennametal-6388594-carbide-tip-drill-insert-5-16-in-kcp15a","title":"Kennametal 6388594 Carbide Tip Drill Insert 5\/16 in KCP15A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 6388594 is a solid carbide replaceable tip drill insert designed for use in KTFS-series replaceable tip drill bodies. Manufactured in grade KCP15A with a fine-grain carbide substrate, this insert features an AlTiN (aluminum titanium nitride) PVD coating that promotes heat resistance and tool life in demanding drilling operations. The HPG insert geometry with a 180-degree included drill point angle supports self-centering entry and clean chip evacuation. With two helical flutes and a two-margin design, it delivers consistent hole quality in steel and cast iron workpieces. Licensed HVAC, plumbing, and general metalworking contractors alike rely on carbide insert tooling to maintain cycle times and hole tolerances.\u003c\/p\u003e\u003cp\u003eThis insert is suited for drilling in steel and cast iron, including inclined-exit surfaces and stacked-plate applications. The 5\/16-inch (0.3125 inch) cutting diameter targets typical hole sizes found in structural, fabrication, and maintenance machining work. The insert seat size is E, compatible with KTFSS-series drill body holders. No through-coolant capability is required on this grade, making it straightforward to apply on standard machining centers and drill presses without coolant-through spindle requirements.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide KCP15A fine-grain substrate for extended edge life in ferrous materials\u003c\/li\u003e\n\u003cli\u003eAlTiN PVD coating for thermal resistance and reduced built-up edge\u003c\/li\u003e\n\u003cli\u003eHPG geometry with 180-degree point angle for self-centering and accurate entry\u003c\/li\u003e\n\u003cli\u003eTwo helical flutes with two-margin design for hole quality and stability\u003c\/li\u003e\n\u003cli\u003eRated for inclined-exit and stacked-plate drilling applications\u003c\/li\u003e\n\u003cli\u003eInsert seat size E fits KTFSS-series replaceable tip drill bodies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replaceable tip insert for KENNAMETAL KTFSS-series drill bodies requiring an E-seat insert. Compatible primary workpiece materials include steel (ISO P) and cast iron (ISO K). No specific additional model compatibility was stated in the product data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of replaceable tip drill inserts should be performed by a qualified machinist or tooling technician. Ensure the drill body and insert seat are clean and free of chips or debris before seating the insert to achieve proper clamping and runout. Use the manufacturer-specified torque driver or clamp key for the insert holding clamp  -  do not over-tighten with non-standard tools. Confirm spindle speed and feed rate are set per the tooling manufacturer recommendations for the workpiece material before engaging the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter (mm)\u003c\/strong\u003e: 7.9375 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCP15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Fine Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Geometry\u003c\/strong\u003e: HPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Seat Size\u003c\/strong\u003e: E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 180 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 Type\u003c\/strong\u003e: Helical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Length\u003c\/strong\u003e: 0.1563 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\/Projection\u003c\/strong\u003e: 0.2252 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 6.00 mm (0.98 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\u003c\/strong\u003e: P, K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KTFSS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Number\u003c\/strong\u003e: KTFSS03125HPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1239 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: 6388594\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51743994347826,"sku":"6388594","price":141.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6347f7cd35a09a3bd394746d06feef03_a4adf03a-640a-44bc-8eb3-a787a51fbd6d.jpg?v=1788852577","url":"https:\/\/voomisupply.com\/products\/kennametal-6388594-carbide-tip-drill-insert-5-16-in-kcp15a","provider":"Voomi Supply","version":"1.0","type":"link"}