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Tungaloy Positive Turning Inserts — 195 SKUs, CCMT / DCMT / VBMT / TCMT
Browse the CNCHome-Beyond Tungaloy positive turning insert catalog — 195 genuine carbide inserts in 4 industry-standard ISO 1832 geometries: CCMT (80° diamond), DCMT (55° diamond), VBMT (35° diamond), and TCMT (triangular). All inserts have a 7° positive rake for low cutting force, ideal for small parts, slender shafts, finishing passes, and low-rigidity machine tools. Sourced directly from Tungaloy's authorized Japanese production line (Tochigi, since 1929) and shipped from our Hangzhou warehouse at 30–50% below OEM list price. T6130 (CVD steel) and T9200 (PVD stainless) grades available across the full size range. ISO 1832 standard sizing — dimensionally interchangeable with Sandvik, Mitsubishi, and KORLOY equivalent inserts.
4 ISO Positive Geometries in This Catalog
| Geometry Code | Shape & Included Angle | Best For | Common Tool Holders |
|---|---|---|---|
| CCMT | 80° rhombic, 7° positive rake (round insert equivalent) | General-purpose external & internal turning; closest geometry to round inserts (RCMT) but with 4 cutting edges | PCLNR/L, SCLCR/L, DCLNR/L |
| DCMT | 55° rhombic, 7° positive rake (acute angle, stronger radial) | Profiling, taper turning, copy turning; sharper point = better radial reach | PDJNR/L, SDJCR/L, DDJNR/L |
| VBMT | 35° rhombic, 7° positive rake (very acute, sharp) | Profiling, copy turning, small-depth finishing; sharpest point geometry | PVJNR/L, SVJCR/L, DVJNR/L |
| TCMT | Triangular, 7° positive rake (3 cutting edges) | Internal boring bars, small-diameter ID turning, axial turning | PTFNR/L, STFCR/L, MTFNR/L (boring bars) |
Positive vs Negative Turning — When to Use Each
Positive Inserts (this collection)
7° positive rake — sharp cutting edge
- Low cutting force
- Low power consumption
- Best for thin-walled parts & low-rigidity setups
- Best for finishing passes & small parts
- Best for Swiss-type / sliding-head lathes
- Smaller IC = lower load per tooth
Negative Inserts (sibling collection)
0° negative rake — strong cutting edge
- Strong edge geometry, higher load tolerance
- Best for heavy roughing & interrupted cuts
- Best for high-rigidity machine tools
- Higher feed rates possible
- Larger IC = more cutting edge options
- Double-sided = 2x more cutting edges per insert
Tungaloy Grade Cross-Reference
| Tungaloy Grade | Coating | ISO Application | Recommended For | Equivalent In |
|---|---|---|---|---|
| T6130 | TiN+Al2O3 CVD | P20–P30 steel, K15–K25 cast iron | General steel turning (Tungaloy's most popular grade) | Sandvik GC4325, Mitsubishi US7020, KORLOY NC3030 |
| T9200 | TiAlN PVD | M15–M25 stainless, S15–S25 high-temp alloys | Stainless & high-temp alloy turning (best wear resistance) | Mitsubishi VP15TF, Sandvik GC2040 |
| T6120 | CVD | P15–P25 steel, universal | General steel turning (broader range than T6130) | Sandvik GC4325, KORLOY NC3225 |
| T515 | PVD | P15–M25 steel & stainless | Universal steel/stainless (versatile grade) | Sandvik GC2015, Mitsubishi VP10 |
| NS9530 (Cermet) | TiCN Cermet (no coating) | P10–P20 steel finishing | High surface finish steel finishing (Ra 0.4-0.8 μm) | Sandvik CG100, Mitsubishi US7020, KORLOY CN2000 |
| AH710 | PVD (aluminum-grade) | N10–N25 aluminum, non-ferrous | Aluminum turning (mirror finish, no built-up edge) | Sandvik H10, KORLOY YB9320 |
Common Chipbreaker Prefixes (in this collection)
- PS (Positive Sharp) — Sharp cutting edge, low cutting force, general-purpose. Most common.
- PF (Positive Finishing) — Honed edge for finishing, excellent surface finish.
- PM (Positive Medium) — Medium chipbreaker, balanced for roughing + finishing.
- PR (Positive Roughing) — Aggressive chipbreaker, heavy roughing with high feed rates.
Browse Related Tungaloy Sub-Collections
- Tungaloy brand page — company background, full grade catalog, TungCap / TungTurn systems, contact engineers
- Tungaloy round inserts (RCMT / RPMT / RDMT) — profiling & heavy roughing round inserts, 13 variants
- Tungaloy master catalog — all Tungaloy indexable inserts (turning + milling + grooving + threading + drilling)
- Premium Carbide Inserts (All Global Brands) — 5,880 SKUs across 8 brands including Tungaloy
Why Buy Tungaloy Positive Turning Inserts from CNCHome-Beyond
- ✅ 195 Tungaloy positive turning SKUs — full CCMT / DCMT / VBMT / TCMT coverage with T6130 / T9200 / T6120 / T515 / NS9530 / AH710 grades
- ✅ 30–50% below OEM list through direct-from-Japan supply (Tungaloy authorized Asia distributors) and Hangzhou warehouse consolidation
- ✅ 100% authentic — every product shipped with Tungaloy lot traceability documentation and original box
- ✅ ISO 9001:2015 certified supply chain for all Tungaloy products
- ✅ Free engineering support — email us a Sandvik / Mitsubishi / KORLOY insert code and we send back a matched Tungaloy equivalent with grade cross-reference and recommended cutting parameters
- ✅ Global shipping in 3–7 days via DHL / UPS / FedEx to 50+ countries, DDP available
Frequently Asked Questions
Q: When should I use a positive insert (CCMT / DCMT / VBMT / TCMT) instead of a negative insert (CNMG / WNMG / TNMG)?
A: Use a positive insert when you need low cutting force, are machining thin-walled parts, have a low-rigidity setup, or are doing finishing passes on small parts. Use a negative insert for heavy roughing, high feed rates, interrupted cuts, and high-rigidity setups. Positive inserts are single-sided with one cutting edge per face; negative inserts are double-sided with two cutting edges per face, giving you more edges per insert.
Q: What's the difference between Tungaloy CCMT, DCMT, VBMT, and TCMT?
A: All four are 7° positive rhombic / triangular inserts, but with different included angles for different turning applications. CCMT is 80° (the most common — closest to a round insert with 4 cutting edges). DCMT is 55° (sharper point, better for profiling and taper turning). VBMT is 35° (very acute, best for profiling and copy turning). TCMT is triangular (3 cutting edges, best for internal boring and small-diameter ID turning). All four are 7° positive and have a single-sided design.
Q: What Tungaloy grade should I use for stainless steel turning?
A: Use T9200 (PVD TiAlN) for stainless steel turning. T9200 is Tungaloy's premium stainless grade, equivalent to Sandvik GC2040 and Mitsubishi VP15TF. For general carbon steel, use T6130 (CVD). For high surface finish steel finishing, use NS9530 (cermet). For aluminum, use AH710 (PVD aluminum-grade).
Q: Are Tungaloy positive inserts interchangeable with Sandvik or Mitsubishi?
A: Yes — CCMT, DCMT, VBMT, and TCMT are ISO 1832 standard geometries, so Tungaloy positive inserts are dimensionally interchangeable with Sandvik, Mitsubishi, Iscar, and KORLOY equivalents. The insert pocket geometry, IC size, and clearance angle are identical across brands. You can switch brands without changing the tool holder.
Talk to a Tooling Engineer
Not sure which Tungaloy positive insert fits your application? Need a cross-reference to a Sandvik, Mitsubishi, or KORLOY insert code? We respond within one business day with stock availability, pricing, and engineering recommendations.
- Email: chao@cnchome-beyond.com
- WhatsApp: +86 159-9066-3752
- Browse Tungaloy brand page · Tungaloy master catalog