{"product_id":"seco-02562791-indexable-threading-toolholder-internal-left-hand","title":"Seco 02562791 Indexable Threading Toolholder Internal Left Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 02562791 is an internal left-hand indexable threading toolholder designed for precision thread-cutting operations on CNC lathes and turning centers. Built from steel and part of the Snap Tap series, it accepts a 3\/8-inch inscribed circle insert with 16NL insert compatibility and uses a clamp-style insert holding method. The toolholder features a CN-style profile with a shank measuring 0.957 inches in diameter and 0.902 inches in height, an overall length of 8 inches, and a minimum bore diameter of 1.15 inches. Coolant-through capability supports chip evacuation and tool life during internal threading cycles.\u003c\/p\u003e\u003cp\u003eThis toolholder is suited for internal threading applications in production and job-shop turning environments. The left-hand orientation and 1.15-inch minimum bore diameter make it appropriate for threading medium-to-large bore diameters on ferrous and non-ferrous workpieces. It is installed by machinists and CNC operators in shops running repetitive threading programs where indexable insert tooling reduces downtime compared to ground tooling. The Snap Tap series is oriented toward rigid, repeatable setups in high-cycle production turning.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInternal left-hand threading orientation for bore threading operations\u003c\/li\u003e\n\u003cli\u003eCoolant-through design for improved chip control and insert longevity\u003c\/li\u003e\n\u003cli\u003eClamp-style insert retention with 16NL insert compatibility\u003c\/li\u003e\n\u003cli\u003eCN toolholder style with 3\/8-inch inscribed circle insert size\u003c\/li\u003e\n\u003cli\u003eSteel construction for rigidity and durability in production turning\u003c\/li\u003e\n\u003cli\u003ePart of the Snap Tap series for consistent, repeatable setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with 16NL indexable threading inserts with a 3\/8-inch inscribed circle. Designed as an OEM-style replacement or direct-fit toolholder for CN-style internal threading applications on CNC lathes and turning centers requiring a left-hand orientation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or CNC setup technicians. The machine spindle must be fully stopped and the machine locked out before mounting or indexing the toolholder. Verify that the boring bar is properly supported and that insert clamp torque follows the insert manufacturer's standard recommendations. Confirm coolant line connection and flow before running a threading cycle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\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: CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Snap Tap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: 16NL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Inscribed Circle\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.957 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Height\u003c\/strong\u003e: 0.902 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 1.15 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1.15 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.65 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.54 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291800\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: 02562791\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51559042482482,"sku":"02562791","price":432.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f1352a4c9af86ac82b553c9b348fc80f.jpg?v=1786426655","url":"https:\/\/voomisupply.com\/products\/seco-02562791-indexable-threading-toolholder-internal-left-hand","provider":"Voomi Supply","version":"1.0","type":"link"}