{"product_id":"walter-7021690-milling-insert-square-wk10-solid-carbide","title":"Walter 7021690 Milling Insert Square WK10 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER 7021690 is a solid carbide milling insert designed for high-performance material removal in non-ferrous metal applications. Built to the SDHT1204AZN-G88 geometry standard, this insert features a square shape with a 90-degree included angle, a positive 20-degree rake angle, and a 15-degree relief angle. The G88 chip breaker geometry and sharp cutting edge style work together to produce clean, efficient cuts with minimal burring. Four available cutting edges extend tool life and reduce per-edge cost. Licensed machinists and CNC tooling technicians working with aluminum, copper, brass, and similar non-ferrous stock will find this insert well-suited to finish and semi-finish milling operations.\u003c\/p\u003e\n\u003cp\u003eThis insert fits the WALTER M4000 cutter series and is intended for single-sided use in screw-held toolholders. It targets non-ferrous metal workpiece materials, designated under material grade N10 and primary workpiece material code N. Typical applications include face milling, shoulder milling, and pocket milling on aluminum alloy components in both production shop and job shop environments. The insert carries both ANSI and ISO designations under the code SDHT1204AZN-G88 WK10, making cross-referencing straightforward for tooling engineers and purchasing teams.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSquare SDHT insert shape with 90-degree included angle for versatile milling geometry\u003c\/li\u003e\n  \u003cli\u003ePositive 20-degree rake angle and 15-degree relief angle reduce cutting forces on non-ferrous stock\u003c\/li\u003e\n  \u003cli\u003eG88 chip breaker promotes chip control during aluminum and non-ferrous milling passes\u003c\/li\u003e\n  \u003cli\u003e4 cutting edges per insert for extended usable tool life\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish preserves sharp edge integrity on soft, gummy non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003eScrew-held mounting method with neutral hand orientation for straightforward indexing\u003c\/li\u003e\n  \u003cli\u003eCompatible with WALTER M4000 cutter series per manufacturer designation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with the WALTER M4000 cutter series. Insert conforms to ANSI and ISO standard code SDHT1204AZN-G88 WK10. Intended for screw-held toolholders accepting SDHT 1204 insert size with a 0.5000-inch inscribed circle.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eIndexable insert installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the spindle drive before indexing or replacing inserts. Use the appropriate Torx or hex key specified by the cutter body manufacturer when seating the clamping screw  -  do not overtighten. Inspect the insert pocket for chips or damage before seating a new insert to ensure proper seating and runout.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SDHT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: WK10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: N10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Uncoated (Bright)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Non-Ferrous Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 20 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: G88\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Sharp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 1204\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (4.76 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0120 inches (0.30 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1728 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle or Double Sided\u003c\/strong\u003e: Single\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutter Series Compatibility\u003c\/strong\u003e: M4000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI\/ISO Code\u003c\/strong\u003e: SDHT1204AZN-G88 WK10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: WALTER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7021690\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":52090614546738,"sku":"7021690","price":409.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7846b63ac6dc55a084add8940114cb0a.jpg?v=1790062607","url":"https:\/\/voomisupply.com\/products\/walter-7021690-milling-insert-square-wk10-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}