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Deskar CNMG120404-TM LF9018
Upgrade your turning performance with the CNMG 120404 TM LF 9018 — negative-geometry, TM chipbreaker, premium LF9018 grade. Superb wear resistance, reduced downtime, and excellent finish on steels. DM/WhatsApp us now for pricing & availability!
Boost your machining productivity with the CNMG 120404 TM LF 9018, one of the most trusted turning inserts for steel applications. Designed with a negative 80° rhombic geometry and TM chipbreaker, this insert ensures stable cutting, excellent chip evacuation, and a superior surface finish in semi-finishing operations.
The LF9018 grade combines a tough carbide substrate with a multilayer wear-resistant coating, giving machinists the perfect balance of long tool life, thermal stability, and edge strength. This means you can cut more parts per insert, reduce downtime from tool changes, and achieve lower cost per component — a direct boost to shop efficiency and profitability.
🔧 Hook / Attention Line
“Cut more parts per insert — reduce your cost per component by up to 30% with the CNMG 120404 TM LF 9018!”
Key Features & Specs
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Geometry & Chipbreaker: Rhombic 80° negative insert with TM chipbreaker style — ideal for semi-finishing operations.
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Dimensions: IC = 12.7 mm, thickness (S) = 4.76 mm, inscribed circle (I.C.) tolerance L, nose radius r = 0.4 mm
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Grade / Coating: LF9018 — premium carbide substrate with multilayer coating designed for high wear resistance and thermal stability (used by reputable producers)
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Cutting Application: Best suited for turning / lathe operations (semi-finishing) on steels (ISO P).
Why It’s a Best Seller
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Longer runtime, fewer tool changes — thanks to the LF9018 grade’s wear resistance and stable coating performance.
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Better surface finish — consistent chip control from the TM chipbreaker means fewer built-ups and smoother surfaces.
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Minimized downtime — predictable performance reduces surprise failures or insert breakage.
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Cost-efficiency — fewer inserts used per batch translates directly to lower tooling cost per piece.
Application Industries
Used across:
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Automotive component turning
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Aerospace parts (steel shafts, landing gear components)
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Die & mold industries (steel molds)
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General engineering & heavy machinery
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Oil & gas upstream machined parts
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Send us a WhatsApp right now to check today’s price & availability!
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Frequently Asked Questions
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CNMG is the insert shape and style (C = rhombic 80°, N = negative geometry, M = tolerance class, G = ground).
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120404 indicates size: 12.7 mm inscribed circle, 4.76 mm thickness, 0.4 mm nose radius.
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TM is the chipbreaker / style variant optimized for semi-finish/medium cutting.
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LF 9018 is the grade/coating combination optimized for steel turning with wear resistance and thermal stability.
As a semi-finishing insert, typical feed (fn) and depth of cut (ap) will depend on your machine, workpiece rigidity, and steel grade. The LF9018 grade is built for moderate to aggressive conditions while maintaining stability. (Refer to your machine guidelines or contact us for recommended parameters.)
It is optimized for semi-finishing. For heavy roughing or full finishing you may consider alternate grades or chipbreakers better suited for extreme conditions. But in many setups, you’ll find LF9018 works well up to light finishing ranges.
This insert fits standard negative-geometry turning holders such as MCKNR/L, MCLNR/L, MCRNR/L, PCBNR/L, among others.
Make sure your holder secures the insert properly and gives adequate clamping support.
At CNC Tools Depot, we maintain deep stock of best-selling inserts like CNMG 120404 TM LF9018. For bulk or monthly requirements, we offer tiered pricing and priority fulfillment.
👉 Just DM, WhatsApp or call us — we’ll send you current stock, pricing and lead time.
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