{"product_id":"hertel-7000023-indexable-boring-bar-1-3-in-left-hand","title":"Hertel 7000023 Indexable Boring Bar 1.3 in Left Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 7000023 is a left-hand A-MDUN indexable boring bar engineered for internal turning and precision bore finishing on CNC and manual lathes. Built from steel with a 1-inch shank diameter and 12-inch overall length, it accepts DN.. style inserts secured by screw or clamp and delivers negative rake cutting geometry at a 5-degree rake angle with a -3-degree lead angle. Through-coolant capability via a 1\/4-18 NPT coolant port keeps cutting temperatures controlled during extended boring operations. It is a single-use-configuration toolholder designed for consistent, repeatable bore sizing in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis boring bar is suited for shops performing internal diameter work on ferrous and non-ferrous materials where a left-hand orientation is required. With a minimum bore diameter of 1.3 inches, it covers a practical range of medium to larger bore applications. The 0.75-inch center-to-cutting-edge and back-of-bar-to-cutting-edge dimension supports accurate tool positioning within the bore. Machinists and CNC operators in production shops, tool rooms, and contract machining environments are the primary users.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand A-MDUN toolholder style for internal boring operations\u003c\/li\u003e\n\u003cli\u003e1.3-inch minimum bore diameter with 12-inch overall length\u003c\/li\u003e\n\u003cli\u003eThrough-coolant design with 1\/4-18 NPT coolant port for thermal management\u003c\/li\u003e\n\u003cli\u003eAccepts DN.. indexable inserts with 3\/8-inch inscribed circle and 3\/16-inch thickness\u003c\/li\u003e\n\u003cli\u003eNegative rake geometry at 5-degree rake angle and -3-degree lead angle\u003c\/li\u003e\n\u003cli\u003eScrew or clamp insert holding for secure, repeatable insert indexing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with DN.. style indexable inserts with a 3\/8-inch inscribed circle and 3\/16-inch insert thickness in A-MDUN toolholder configurations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation of indexable boring bars should be performed by a qualified machinist or CNC setup technician. Secure the shank fully within the tool turret or boring head to the recommended overhang per shop standards, minimizing deflection. Before indexing or replacing inserts, ensure the machine is powered down and the spindle is fully stopped. Verify coolant line connection to the 1\/4-18 NPT port is leak-free before resuming cutting operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: A-MDUN\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: 1.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: -3 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: DN..\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 3\/8 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: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.75 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: 2.4 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: 7000023\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51753826124082,"sku":"7000023","price":646.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a0d14bfcbd098d67914c05a52dc9ebf4.jpg?v=1788941166","url":"https:\/\/voomisupply.com\/products\/hertel-7000023-indexable-boring-bar-1-3-in-left-hand","provider":"Voomi Supply","version":"1.0","type":"link"}