{"product_id":"seco-00041053-indexable-boring-bar-left-hand-a-mcln","title":"Seco 00041053 Indexable Boring Bar Left Hand A-mcln","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 00041053 is a left-hand A-MCLN indexable boring bar designed for internal turning operations in metal cutting applications. Built from steel with a 1.5-inch shank diameter and a 14-inch overall length (OAL), this boring bar accepts CNMG 432 inserts secured by a pin and clamp holding method. The minimum bore diameter is 1.78 inches, making it suited for medium to large bore finish and semi-finish turning work. Coolant is delivered through the body directly to the cutting zone, supporting chip evacuation and tool life in demanding cuts. A lead angle of 95 degrees and a negative rake angle of -5 degrees are built into the geometry.\u003c\/p\u003e\u003cp\u003eThis boring bar is used in CNC and manual lathe operations where left-hand cutting direction is required. It is appropriate for production and job-shop turning environments handling steel, cast iron, and similar materials. The through-coolant feature makes it particularly effective in deep bore applications where flood coolant has limited reach. Machinists, toolroom operators, and production turning specialists are the primary users of this toolholder.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand cutting direction with A-MCLN toolholder style\u003c\/li\u003e\n\u003cli\u003e1.78-inch minimum bore diameter for medium to large internal turning\u003c\/li\u003e\n\u003cli\u003e14-inch OAL with 1.5-inch shank diameter for rigid reach\u003c\/li\u003e\n\u003cli\u003eThrough-coolant delivery for improved chip control in deep bores\u003c\/li\u003e\n\u003cli\u003ePin and clamp insert holding for secure, repeatable CNMG 432 insert seating\u003c\/li\u003e\n\u003cli\u003eNegative rake geometry (-5 degrees) suited for interrupted cuts and hard materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CNMG 432 diamond-shaped inserts with a 0.5-inch inscribed circle and 3\/16-inch insert thickness. Compatible insert size code is 43.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and setup should be performed by a qualified machinist or toolroom professional. Ensure the lathe spindle is fully stopped and the machine is locked out before mounting or removing the boring bar. Secure the shank in a boring bar holder or turret block to the full recommended grip length to minimize overhang deflection. Verify coolant line connection and flow before engaging the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 1.78 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 95 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: -5 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: A-MCLN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: CNMG 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Pin and Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.89 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Application\u003c\/strong\u003e: Turning\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: SECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 00041053\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562783146290,"sku":"00041053","price":525.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/17bf4bd74615a8a202a0baf912680a45_77bda0f3-f09a-4cc5-bf19-860a58169d98.jpg?v=1786484527","url":"https:\/\/voomisupply.com\/products\/seco-00041053-indexable-boring-bar-left-hand-a-mcln","provider":"Voomi Supply","version":"1.0","type":"link"}