{"product_id":"kennametal-3791279-grooving-insert-kcu25-solid-carbide","title":"Kennametal 3791279 Grooving Insert KCU25 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 3791279 is a solid carbide grooving insert designed for precision external grooving and parting operations on CNC lathes and turning centers. This insert carries the A4G0205GUP geometry in the KCU25 grade, featuring a PVD-applied AlTiN coating that improves wear resistance and tool life across a range of workpiece materials. The neutral hand orientation suits straight-in grooving applications, and the positive rake geometry reduces cutting forces. With a 2.05 mm cutting width and a maximum depth of cut of 2.00 mm, this insert is sized for fine-pitch groove work where dimensional accuracy matters. Machinists and CNC tooling specialists working in production or job-shop environments will find this insert well-suited to demanding finishing and grooving cycles.\u003c\/p\u003e\n\u003cp\u003eThe 3791279 insert belongs to the Kennametal Series A4 grooving system and is intended for use in compatible A4-series grooving toolholders. It is applied in turning applications targeting materials in the C2 and C6 material grade ranges, which broadly cover cast irons and non-ferrous materials as well as general steel cutting. Typical install scenarios include shaft grooving, snap-ring groove preparation, and undercut operations on medium to small-diameter workpieces. The GUP chip breaker geometry is configured for controlled chip evacuation in these shallow, narrow groove profiles.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate in KCU25 grade for consistent edge integrity under interrupted and continuous cuts\u003c\/li\u003e\n  \u003cli\u003ePVD AlTiN coating provides elevated temperature and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003e2.05 mm cutting width with a 0.20 mm corner radius for accurate groove geometry\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut range of 2.00 to 3.00 mm suits shallow grooving and parting passes\u003c\/li\u003e\n  \u003cli\u003ePositive rake angle reduces cutting forces and deflection on slender workpieces\u003c\/li\u003e\n  \u003cli\u003eGUP chip breaker geometry promotes chip control in narrow groove profiles\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with straight radial grooving setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Kennametal Series A4 grooving toolholders that accept the A4G insert style. Confirm toolholder seat dimensions and insert retention method against the A4 system specifications before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCarbide grooving inserts should be installed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before seating or removing any insert. Use the manufacturer-recommended torx or hex key at the specified tool-holding torque for the A4 seat; do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket and shim for wear or debris before seating a new insert, and verify tool overhang is minimized to reduce vibration during the grooving cycle.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: A4G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: A4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCU25\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\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\u003eChip Breaker\u003c\/strong\u003e: GUP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 2.05 mm (0.0807 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 2.00 mm (0.0787 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut Range\u003c\/strong\u003e: 2.00 to 3.00 mm (0.0750 to 0.1000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.20 mm (0.0079 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 0.7933 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size\u003c\/strong\u003e: 0205\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C2, C6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: 3791279\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51787971952946,"sku":"3791279","price":558.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b23eae77272d146861b311c37b5bd68d_fe0188c9-4ff0-40bf-b618-c87c518cb189.jpg?v=1789221186","url":"https:\/\/voomisupply.com\/products\/kennametal-3791279-grooving-insert-kcu25-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}