{"product_id":"kennametal-3766691-turning-insert-dnga432t0420-ky4300-ceramic","title":"Kennametal 3766691 Turning Insert DNGA432T0420 KY4300 Ceramic","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 3766691 is a DNGA432T0420 KY4300 grade whiskered ceramic turning insert designed for high-speed material removal in demanding cutting applications. Carrying the KENLOC series designation, this uncoated, bright-finish insert features a 55-degree diamond (rhombic) shape with a neutral hand orientation and a flat-top chip breaker geometry. The 0.5-inch inscribed circle, 0.1875-inch thickness, and 1\/32-inch corner radius define a robust cutting profile suited for aggressive depths of cut up to 13\/32 inch. Four available cutting edges and a T-Land cutting edge style make this insert a practical choice for shops running superalloy and titanium workpieces at elevated surface speeds.\u003c\/p\u003e\n\u003cp\u003eThis insert is engineered primarily for superalloys and titanium (ISO material code S), where ceramic grades outperform carbide at high cutting speeds. Rated for turning, facing, boring, back turning, and back boring operations, the DNGA432 geometry fits standard negative-rake KENLOC-style toolholders. The whiskered alumina SiC ceramic substrate delivers the thermal and chemical wear resistance required when cutting nickel-based superalloys, titanium alloys, and similar hard-to-machine materials common in aerospace and power generation component manufacturing. Licensed machinists and CNC programmers working in these industries will recognize the DNGA432 as a standard insert size.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eWhiskered alumina SiC ceramic substrate  -  KY4300 grade optimized for superalloys and titanium\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape (DNGA) with negative rake and zero relief angle for maximum edge strength\u003c\/li\u003e\n  \u003cli\u003eT-Land cutting edge style provides controlled engagement and edge reinforcement on tough workpiece materials\u003c\/li\u003e\n  \u003cli\u003eFlat-top chip breaker geometry supports consistent chip control in turning, facing, and boring operations\u003c\/li\u003e\n  \u003cli\u003eFour usable cutting edges per insert with neutral hand orientation for flexible toolholder compatibility\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish  -  no coating process variables affecting edge geometry or thermal response\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI (DNGA432) and ISO (DNGA150408 \/ DNGA150408T01020) insert standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in KENLOC-series negative-rake toolholders accepting DNGA432 geometry inserts. Compatible with ANSI insert code DNGA432 and ISO insert code DNGA150408. Suitable for multi-use applications including turning, facing, boring, back turning, and back boring on superalloy and titanium workpiece materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer torque and clamp specifications  -  do not overtighten the clamping screw or pin. Verify the insert pocket is clean and free of chips or debris before seating to avoid insert rocking and premature edge failure. When indexing to a new cutting edge, inspect the pocket and seating surface for wear or damage. Minimum order quantity for this insert is 5 pieces; plan inventory accordingly to maintain continuity of operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DNGA432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DNGA150408\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: DNGA432T0420\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KY4300\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Whiskered Ceramic (Alumina SiC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Uncoated (Bright)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 0 degrees (Negative Rake)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: T-Land\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Flat Top\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 15.50 mm \/ 1.2208 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches (1\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.4065 inches (13\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Superalloys and Titanium (ISO Code S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 (Minimum Order Quantity: 5)\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: 3766691\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51744019120434,"sku":"3766691","price":267.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/48b7d8e8f4b0a65b31b045951bf0f6e5.jpg?v=1788853013","url":"https:\/\/voomisupply.com\/products\/kennametal-3766691-turning-insert-dnga432t0420-ky4300-ceramic","provider":"Voomi Supply","version":"1.0","type":"link"}