{"product_id":"hertel-7000014-indexable-boring-bar-2-4in-left-hand-a-mcln","title":"Hertel 7000014 Indexable Boring Bar 2.4in Left Hand A-mcln","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 7000014 is a left-hand A-MCLN style indexable boring bar engineered for precision internal turning and boring operations on machining centers and manual lathes. Built from steel, the bar features a 2.0-inch shank diameter and a 16-inch overall length (OAL), providing the reach and rigidity needed for deep-bore applications. It accepts CN-style inserts secured by screw or clamp, runs a negative rake geometry at a -5-degree lead angle, and includes through-coolant capability via a 1\/4-18 NPT coolant port, supporting extended cutting performance and chip evacuation in demanding materials.\u003c\/p\u003e\u003cp\u003eThis boring bar is suited for industrial machining environments where left-hand boring is required, such as back-boring operations or setups where toolpath direction demands a left-hand holder. The 2.4-inch minimum bore diameter and 1.2810-inch center-to-cutting-edge dimension make it appropriate for medium-to-large bore work on CNC turning centers, horizontal boring mills, and manual lathes. Machinists and tool-and-die professionals specify this holder when through-coolant delivery is critical to tool life and surface finish in long-reach applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand A-MCLN toolholder style for back-boring and left-hand cutting setups\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design with 1\/4-18 NPT inlet for improved chip evacuation and insert life\u003c\/li\u003e\n\u003cli\u003eAccepts CN-style indexable inserts (1\/2-inch inscribed circle, 3\/16-inch thick) via screw or clamp holding\u003c\/li\u003e\n\u003cli\u003eNegative rake geometry with -5-degree lead angle for stable cutting on steel and tough alloys\u003c\/li\u003e\n\u003cli\u003eSteel construction with 2.0-inch shank diameter for high rigidity in deep-bore applications\u003c\/li\u003e\n\u003cli\u003e1.2810-inch back-of-bar to cutting edge dimension for predictable setup and offset entry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CN-style indexable inserts with a 1\/2-inch inscribed circle and 3\/16-inch thickness. Confirm insert geometry and chipbreaker selection against the specific workpiece material and cutting conditions before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and clamping procedures. Power down and lock out the machine spindle before mounting or removing the boring bar. Verify shank-to-spindle bore fit and confirm coolant line connection to the 1\/4-18 NPT port is leak-free before initiating a cut. Insert indexing or replacement should be performed off the machine when possible, using the appropriate torx or hex key per the insert holding hardware.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: A-MCLN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 2.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 2.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: -5 degrees\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\u003eInsert Compatibility\u003c\/strong\u003e: CN style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw or Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1.2810 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 1.2810 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Hole Thread Size\u003c\/strong\u003e: 1\/4-18 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 13.2 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7000014\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51752894366002,"sku":"7000014","price":921.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/11b3aadf40ac349a47b88ad08567540b.jpg?v=1788930913","url":"https:\/\/voomisupply.com\/products\/hertel-7000014-indexable-boring-bar-2-4in-left-hand-a-mcln","provider":"Voomi Supply","version":"1.0","type":"link"}