{"product_id":"kennametal-1094838-indexable-boring-bar-left-hand-steel","title":"Kennametal 1094838 Indexable Boring Bar Left Hand Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1094838 is a left-hand indexable boring bar designed for precision internal turning operations on CNC lathes and boring mills. Built on the Top Notch series platform, it accepts N-style clamp-held inserts and features a coolant-through design with a 1\/4-18 NPT coolant hole thread for direct chip and heat management at the cutting zone. The steel shank measures 1-1\/4 inches in diameter with a 14-inch overall length, and the minimum bore diameter is 1-3\/4 inches. This bar is suited for machinists and toolroom professionals running tight-tolerance bores on ferrous and non-ferrous workpieces.\u003c\/p\u003e\u003cp\u003eThis boring bar fits production and job-shop environments where left-hand cutting geometry is required, such as back-boring operations or setups where the spindle direction or workholding orientation demands a left-hand holder. The 3-degree lead angle and 0.875-inch center-to-cutting-edge dimension support controlled radial engagement. Compatible inserts follow the N. Top Notch insert family. This tool is typically selected for medium to heavy-duty internal diameter finishing and semi-finishing passes on horizontal and vertical turning centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand cutting geometry for back-boring and reverse-spindle applications\u003c\/li\u003e\n\u003cli\u003eTop Notch series clamp-style insert holding for rigid, repeatable insert indexing\u003c\/li\u003e\n\u003cli\u003eCoolant-through capability with 1\/4-18 NPT coolant hole thread for in-cut cooling\u003c\/li\u003e\n\u003cli\u003e1-1\/4 inch steel shank provides rigidity and vibration resistance at 14-inch OAL\u003c\/li\u003e\n\u003cli\u003e0.875-inch center-to-cutting-edge dimension for precise bore sizing\u003c\/li\u003e\n\u003cli\u003eAccepts N. series inserts, broadening insert grade and geometry options\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with N-style Top Notch series inserts. Specific compatible insert grades and geometries should be confirmed against the KENNAMETAL Top Notch insert catalog for the target workpiece material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the tool turret or boring head is de-energized before mounting or removing the bar. Secure the shank in a properly sized boring head or turret block that matches the 1-1\/4-inch shank diameter, and verify overhang does not exceed manufacturer guidance for the bore depth required. Confirm coolant line connection to the 1\/4-18 NPT port is leak-free before initiating a cutting cycle.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eToolholder Style\u003c\/strong\u003e: A-NE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Top Notch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 3 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter to Cutting Edge\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand of Holder\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Compatibility\u003c\/strong\u003e: N. (Top Notch)\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\u003eShank Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.39 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: 1094838\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51747375776050,"sku":"1094838","price":623.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1875f31e912662220818f69c2ca0eb10.jpg?v=1788879146","url":"https:\/\/voomisupply.com\/products\/kennametal-1094838-indexable-boring-bar-left-hand-steel","provider":"Voomi Supply","version":"1.0","type":"link"}