Carbide Insert Nose Radius - 0.2 0.4 0.8 mm

Carbide Insert Nose Radius - 0.2 0.4 0.8 mm

Why Nose Radius Matters The nose radius is the "cutting edge's corner" that determines surface finish, tool life and vibration. A smaller radius (0.2 mm) gives razor-sharp accuracy for light finishing; 0.4 mm balances versatility for semi-finishing; 0.8 mm adds edge strength for heavy roughing and interrupted cuts. Choosing the correct value can cut cycle time by 15 % and extend insert life by 30 %.

Technical Advantages of Our Inserts

Micro-grain 100 % virgin tungsten carbide, 12 % Co content, HV 30 ≥ 1 750 – triple the wear resistance of recycled carbide.

Nano-TiAlN / AlTiN multi-layer PVD coating, 3 300 HV, 1.8 μm thick; reduces crater wear at 600 °C and permits 25 % higher cutting speed.

Precision-honed edge radius within ±0.01 mm; mirror-like surface Ra ≤ 0.2 μm minimises BUE on aluminium or stainless.

Strict ±0.025 mm nose-radius tolerance guarantees repeatability when indexing-no re-adjustment of tool offset.

Universal chip-breaker designs: F-type for finishing, M-type for medium, R-type for roughing-one insert covers 90 % of jobs.

Universal Insert Identification Table (most requested shapes & sizes)

Insert Designation | IC (mm) | Thickness (mm) | Nose Radius (mm) | Grade | Coating | Application | ISO Standard TCGT090202F-AL | 9.525 | 2.38 | 0.2 | CT1025 | AlTiN | Aluminium finishing | ISO 1832 TCGT090204F-AL | 9.525 | 2.38 | 0.4 | CT1025 | AlTiN | Aluminium semi-finishing | ISO 1832 TCGT090208F-AL | 9.525 | 2.38 | 0.8 | CT1025 | AlTiN | Aluminium roughing | ISO 1832 CCMT060202F-PM | 6.35 | 2.38 | 0.2 | CT3015 | TiAlN | Steel finishing | ISO 1832 CCMT060204F-PM | 6.35 | 2.38 | 0.4 | CT3015 | TiAlN | Steel semi-finishing | ISO 1832 CCMT060208F-PM | 6.35 | 2.38 | 0.8 | CT3015 | TiAlN | Steel roughing | ISO 1832 CNMG120404-PM | 12.7 | 4.76 | 0.4 | CT5025 | AlTiN+TiN | Steel/stainless universal | ISO 1832 CNMG120408-PM | 12.7 | 4.76 | 0.8 | CT5025 | AlTiN+TiN | Steel/stainless heavy rough | ISO 1832 VNMG160404-PM | 16.6 | 4.76 | 0.4 | CT3015 | TiAlN | Stainless semi-finishing | ISO 1832 VNMG160408-PM | 16.6 | 4.76 | 0.8 | CT3015 | TiAlN | Stainless roughing | ISO 1832 WNMG080404-PM | 12.7 | 4.76 | 0.4 | CT5025 | AlTiN+TiN | General steel | ISO 1832 WNMG080408-PM | 12.7 | 4.76 | 0.8 | CT5025 | AlTiN+TiN | Heavy steel | ISO 1832 DCMT070202F-PM | 7.94 | 2.38 | 0.2 | CT1025 | TiAlN | Precision finishing | ISO 1832 DCMT070204F-PM | 7.94 | 2.38 | 0.4 | CT1025 | TiAlN | Medium finishing | ISO 1832 DCMT070208F-PM | 7.94 | 2.38 | 0.8 | CT1025 | TiAlN | Light roughing | ISO 1832

(We stock 0.2 mm, 0.4 mm & 0.8 mm nose radii for every popular shape-TCGT, CCGT, CNMG, VNMG, WNMG, DCMT, SCMT, SNMG, TNMG, TPGB, etc. OEM/ODM laser marking & special chip-breakers 7-day lead time.)

Recommended Cutting Parameters

Material | Nose Radius | Speed vc (m/min) | Feed f (mm/rev) | Depth ap (mm) Low-carbon steel | 0.2 | 180–220 | 0.05–0.12 | 0.1–0.5 Low-carbon steel | 0.4 | 160–200 | 0.10–0.25 | 0.3–1.5 Low-carbon steel | 0.8 | 140–180 | 0.15–0.35 | 0.8–3.0 Stainless 304 | 0.2 | 120–150 | 0.05–0.10 | 0.1–0.4 Stainless 304 | 0.4 | 110–140 | 0.08–0.20 | 0.3–1.2 Stainless 304 | 0.8 | 90–120 | 0.12–0.30 | 0.8–2.5 Aluminium 6061 | 0.2 | 300–400 | 0.05–0.15 | 0.1–0.6 Aluminium 6061 | 0.4 | 280–350 | 0.10–0.25 | 0.3–1.5 Aluminium 6061 | 0.8 | 250–300 | 0.15–0.35 | 0.8–3.0

Surface Finish vs. Nose Radius-Quick Formula Ra (µm) ≈ f ² / (31 × r)
Example: feed f = 0.2 mm/rev, radius r = 0.4 mm → Ra ≈ 0.03 µm, mirror finish on aluminium.

Quality & Logistics • 100 % incoming carbide powder inspection, 100 % geometry laser scanning, batch COA with every shipment.
• 50 000 pcs regular stock, < 3 day dispatch for standard items.
• Neutral white box or custom colour box, barcode label for automatic vending machines.
• DHL/UPS/FedEx 3–5 days to USA/EU, sea+rail 25 days for bulk, all Incoterms supported.

Send Your Inquiry Today-Get Free Samples & 2-hour Quote Tell us the insert shape, radius and grade you currently use; we will ship 5 pieces free within 48 hours. Need special chip-breakers or 0.05 mm micro-radius? Our engineers reply in 2 hours with drawings and prices.

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