{"product_id":"kennametal-6388673-carbide-replaceable-tip-drill-21mm","title":"Kennametal 6388673 Carbide Replaceable Tip Drill 21mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 6388673 is a solid carbide replaceable tip drill designed for precision hole-making in metalworking applications. This tip is part of the KTFS series and features a 143-degree included angle drill point geometry, an HPG insert profile, and an AlTiN (aluminum titanium nitride) coating applied via PVD process. The AlTiN finish provides thermal resistance and wear protection suited for dry or semi-dry cutting conditions. Cutting diameter is 21mm (0.8268 inches). The tip mounts in compatible KTFS-series drill bodies and is intended for installation and replacement by machinists and tool-crib technicians in production or job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis replaceable tip is used in CNC machining centers and drilling operations where hole diameter accuracy and tool economy are priorities. The KTFS system allows worn or damaged tips to be swapped without replacing the entire drill body, reducing tooling cost per hole. Typical applications include drilling into steel, stainless steel, and other ferrous materials where the KCP15A carbide grade and AlTiN coating provide adequate edge retention and heat resistance. The insert seat size designation is Z, which determines body compatibility.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e21mm (0.8268 inch) cutting diameter for close-tolerance drilling\u003c\/li\u003e\n  \u003cli\u003eSolid carbide tip with KCP15A manufacturer grade for wear resistance in ferrous materials\u003c\/li\u003e\n  \u003cli\u003eAlTiN coating via PVD process for thermal protection and extended tool life\u003c\/li\u003e\n  \u003cli\u003e143-degree drill point angle with HPG insert geometry for controlled chip formation\u003c\/li\u003e\n  \u003cli\u003eInsert seat size Z for compatibility with matching KTFS-series drill bodies\u003c\/li\u003e\n  \u003cli\u003eReplaceable tip design reduces tooling cost by eliminating full drill replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with KTFS-series drill bodies accepting insert seat size Z. Verify body size and seat designation before ordering to confirm fit.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and tip changes should be performed by qualified machinists or tooling technicians. Always power down and lock out the spindle before accessing the tool holder or changing the tip. Follow the drill body manufacturer torque guidelines for the clamping screw to ensure proper seating and runout control. Inspect the insert seat for chips or contamination before installing a new tip.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 21mm (0.8268 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 143 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 143 degrees\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\u003eSeries\u003c\/strong\u003e: KTFS\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: Z\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 0.59 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 1.57 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 1.57 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 6388673\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51741157032242,"sku":"6388673","price":246.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6347f7cd35a09a3bd394746d06feef03_5c864901-1242-43e9-803f-2ef0864c6b97.jpg?v=1788829690","url":"https:\/\/voomisupply.com\/products\/kennametal-6388673-carbide-replaceable-tip-drill-21mm","provider":"Voomi Supply","version":"1.0","type":"link"}