{"product_id":"iscar-3600592-indexable-turning-toolholder-mtjnr-12-3","title":"Iscar 3600592 Indexable Turning Toolholder Mtjnr 12-3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 3600592 is an indexable turning toolholder in the MTJNR 12-3 style, designed for right-hand cutting direction on CNC lathes and manual turning centers. It accepts TN-style negative-rake inserts secured by a clamp and pin holding method, providing rigid, repeatable insert location under continuous cutting loads. The shank measures 0.75 x 0.75 inches, the overall length is 4.5 inches, and the head length is 1.0 inch. A negative 5-degree rake angle is built into the pocket geometry. This holder is part of ISCAR Isoturn series and conforms to ISO 13399 tooling data standards. Machinists and CNC toolroom technicians are the primary installers.\u003c\/p\u003e\u003cp\u003eThis toolholder is suited for external longitudinal and facing turning operations on ferrous and non-ferrous workpieces in both production and job-shop environments. The right-hand cutting direction makes it compatible with conventional lathe setups where the tool feeds from the tailstock toward the headstock. The compatible insert size code is TNMG331-F3P, and the holder accepts the broader TN..3.. insert family. No coolant-through capability is present, so external coolant delivery must be used when flood or mist cooling is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMTJNR 12-3 toolholder style with right-hand cutting direction\u003c\/li\u003e\n\u003cli\u003eClamp and pin insert holding method for rigid, repeatable seating\u003c\/li\u003e\n\u003cli\u003eAccepts TN..3.. negative-rake insert family; compatible insert size code TNMG331-F3P\u003c\/li\u003e\n\u003cli\u003e0.75 x 0.75 inch square shank, 4.5 inch overall length\u003c\/li\u003e\n\u003cli\u003eNegative 5-degree rake angle built into pocket geometry\u003c\/li\u003e\n\u003cli\u003eConforms to ISO 13399 tooling data standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with TN..3.. series negative-rake turning inserts; the specifically referenced compatible insert size code from the input data is TNMG331-F3P. Fits standard 0.75 x 0.75 inch square-shank tool blocks and turrets on CNC and manual lathes equipped for external turning operations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or CNC toolroom technician. Confirm the turret or tool block accepts a 0.75 x 0.75 inch square shank before mounting. Power down and lock out the machine spindle before inserting or changing the toolholder. Torque the clamp screw to the tool manufacturer's specification for the insert style in use, and verify insert seating and cutting-edge orientation before resuming cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: MTJNR 12-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Isoturn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eInsert Compatibility\u003c\/strong\u003e: TN..3..\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Insert Size Code\u003c\/strong\u003e: TNMG331-F3P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -5 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Width\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.0 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1.0 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-use Tool\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ISO 13399\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23153308\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3600592\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51746857156914,"sku":"3600592","price":160.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/904a0bd236558ba8e7aab2d9b155decc.jpg?v=1788874091","url":"https:\/\/voomisupply.com\/products\/iscar-3600592-indexable-turning-toolholder-mtjnr-12-3","provider":"Voomi Supply","version":"1.0","type":"link"}