{"product_id":"sumitomo-1grb004-cutoff-insert-ac830p-carbide-0-1181in","title":"Sumitomo 1GRB004 Cutoff Insert AC830P Carbide 0.1181in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUMITOMO 1GRB004 is a solid carbide cutoff and grooving insert in the WCF series, designed for precision parting, grooving, chamfering, and cut-off operations on CNC lathes and turning centers. It carries manufacturer grade AC830P with a CVD coating process, delivering thermal resistance and wear performance on demanding workpiece materials. The cutting width measures 0.1181 inches with an 8-degree lead angle in a right-hand orientation. The clamp-style holding method provides secure seating in compatible WCF-series toolholders. This insert is intended for use by machinists and tool-room professionals running production or job-shop turning operations.\u003c\/p\u003e\u003cp\u003eThe 1GRB004 is suited for applications involving stainless steel and steel workpieces, corresponding to ISO material codes M and P. Typical use cases include parting-off bar stock, external grooving, and chamfering on CNC or manual turning equipment. The insert size code is 3 within the WCF series. The corner radius is 1\/128 inch. It is a single-use, non-multi-use insert configuration.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction with AC830P grade and CVD coating for extended tool life on steel and stainless steel\u003c\/li\u003e\n\u003cli\u003eCutting width of 0.1181 inches for precise parting and grooving operations\u003c\/li\u003e\n\u003cli\u003e8-degree right-hand lead angle for directional chip control during cut-off\u003c\/li\u003e\n\u003cli\u003eClamp-style insert holding method for rigid, repeatable seating in WCF-series blocks\u003c\/li\u003e\n\u003cli\u003eSuitable for chamfering, cut-off, and grooving in a single insert geometry\u003c\/li\u003e\n\u003cli\u003eMaterial grades C5, C5A, and C6 coverage across a range of steel and stainless steel applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with WCF-series clamp-style cutoff and grooving toolholders that accept size code 3 inserts. Compatible primary workpiece materials include stainless steel and steel (ISO material codes M and P).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist with the machine powered down and the spindle locked. Use the appropriate torque driver or clamp key specified for the WCF-series toolholder to seat the insert without over-tightening. Inspect the insert pocket for chips or debris before seating to ensure proper clamping contact. Follow the toolholder manufacturer guidelines for insert indexing and replacement intervals.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: WCF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 3\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: AC830P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 0.1181 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 8 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/128 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C5A, C6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Tool Application\u003c\/strong\u003e: Chamfering, Cut-off, Grooving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: WCF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: SUMITOMO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1GRB004\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUMITOMO","offers":[{"title":"Default Title","offer_id":51738805862706,"sku":"1GRB004","price":218.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9b6baff0ce7c5f09063dd4824ca592a.jpg?v=1788804798","url":"https:\/\/voomisupply.com\/products\/sumitomo-1grb004-cutoff-insert-ac830p-carbide-0-1181in","provider":"Voomi Supply","version":"1.0","type":"link"}