{"product_id":"hertel-7000021-indexable-boring-bar-1-705-in-right-hand","title":"Hertel 7000021 Indexable Boring Bar 1.705 in Right Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 7000021 is a right-hand A-MDUN indexable boring bar engineered for precision internal turning operations on CNC lathes and boring mills. Built from steel with a 1-1\/4 inch shank diameter and a 14 inch overall length, it accepts DN-style inserts held by screw or clamp, with a negative rake angle of 5 degrees and a -3 degree lead angle. The minimum bore diameter is 1.705 inches, making it suitable for medium-to-large bore work. Through-coolant capability is integrated via a 1\/4-18 NPT coolant hole, keeping the cutting zone clear and extending insert life in demanding cuts.\u003c\/p\u003e\n\u003cp\u003eThis boring bar is used in production and job-shop environments where accurate, repeatable bore finishing or roughing is required. It is suited for ferrous and non-ferrous materials where a negative-rake DN insert geometry is appropriate. The right-hand configuration positions the cutting edge for standard forward-feed boring operations on conventional lathe setups. Machinists and toolroom technicians installing this bar into CNC or manual boring setups will find the 1 inch back-of-bar to cutting edge and 1 inch center-to-cutting-edge dimensions useful for tool offset programming.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRight-hand A-MDUN toolholder style accepts DN-style indexable inserts\u003c\/li\u003e\n  \u003cli\u003e1.705 inch minimum bore diameter for medium-to-large bore applications\u003c\/li\u003e\n  \u003cli\u003e14 inch overall length with 1-1\/4 inch steel shank for rigid setup\u003c\/li\u003e\n  \u003cli\u003eThrough-coolant design with 1\/4-18 NPT port for directed coolant delivery\u003c\/li\u003e\n  \u003cli\u003eNegative rake geometry with 5 degree rake angle and -3 degree lead angle\u003c\/li\u003e\n  \u003cli\u003eScrew or clamp insert holding method for secure, repeatable insert indexing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to accept DN-style indexable inserts with a 1\/2 inch inscribed circle and 3\/16 inch insert thickness, consistent with A-MDUN toolholder specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and all motion is locked out before mounting or adjusting the boring bar. Verify shank-to-turret or boring head fit and torque retention hardware per the machine tool manufacturer specifications. Confirm coolant line connections at the 1\/4-18 NPT port are properly sealed before resuming coolant flow.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 1.705 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\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: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: DN 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\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\u003eLead Angle\u003c\/strong\u003e: -3 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 1 inch\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: 4.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 7000021\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51729278566706,"sku":"7000021","price":755.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/642157535385375bc6773b1943a18ff6.jpg?v=1788702406","url":"https:\/\/voomisupply.com\/products\/hertel-7000021-indexable-boring-bar-1-705-in-right-hand","provider":"Voomi Supply","version":"1.0","type":"link"}