{"product_id":"kennametal-1097258-indexable-threading-toolholder-left-hand","title":"Kennametal 1097258 Indexable Threading Toolholder Left Hand","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1097258 is an external, left-hand indexable threading toolholder designed for precision threading and grooving operations on CNC lathes and turning centers. Part of the Top Notch series, this toolholder accepts N.3L inserts secured with a clamp-style holding method for rigid, repeatable positioning under cutting loads. The shank measures 1.25 x 1.25 inches square, with an overall length of 6 inches. Maximum depth of cut reaches 0.21 inches (5.33 mm). Machinists and toolroom technicians working in production turning environments will find this holder suited for both external thread cutting and grooving applications.\u003c\/p\u003e\u003cp\u003eThis toolholder is intended for external threading and grooving operations on turning equipment where a left-hand orientation is required. The Top Notch series is a common platform in production and job-shop lathe work, supporting interchangeable N.3L inserts across compatible setups. The clamp-style insert retention is well-suited to interrupted cuts and high-volume threading passes. Typical applications include threading ODs on steel, stainless, and alloy workpieces in both manual and CNC turning environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eExternal threading and grooving capability in a single left-hand holder\u003c\/li\u003e\n\u003cli\u003eTop Notch series platform with N.3L insert compatibility\u003c\/li\u003e\n\u003cli\u003eClamp-style insert holding method for secure, repeatable seating\u003c\/li\u003e\n\u003cli\u003e1.25 x 1.25 inch square shank fits standard turning center tool blocks\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 0.21 inches (5.33 mm)\u003c\/li\u003e\n\u003cli\u003eMulti-use design supports both threading and grooving operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with N.3L series Top Notch inserts. Compatible with turning centers and CNC lathes equipped with tool blocks accepting a 1.25 x 1.25 inch square shank. No coolant-through capability; intended for external applications only.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Secure the toolholder firmly in the tool block or turret to the machine manufacturer's specified clamping torque before operation. Verify left-hand orientation and insert seating before initiating any cut. Always power down and lock out the machine before changing inserts or repositioning the holder.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\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: NS (Top Notch Series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: N.3L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Width and Height\u003c\/strong\u003e: 1.25 x 1.25 inches (31.75 x 31.75 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches (152.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Length\u003c\/strong\u003e: 1.25 inches (31.75 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.21 inches (5.33 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack of Bar to Cutting Edge\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Tool Application\u003c\/strong\u003e: Grooving and Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-use Tool\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.55 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1097258\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51727143272754,"sku":"1097258","price":239.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d42e05694ff947fcdf8aecfc3a5c7db7.jpg?v=1788673969","url":"https:\/\/voomisupply.com\/products\/kennametal-1097258-indexable-threading-toolholder-left-hand","provider":"Voomi Supply","version":"1.0","type":"link"}