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Mitsubishi WCMT06T304 UTI20T Carbide Turning Inserts for Cast Iron & Steel
$72.03 USD
MITSUBISHI WCMT06T304 UTI20T Professional Uncoated Carbide Grade | Versatility in Cast Iron & Steel Product Overview The Mitsubishi WCMT06T304 UTI20T is an 80° trigon positive turning insert designed for reliability...
Mitsubishi WCMT06T304 US735 Carbide Inserts for Stainless Steel Machining
$62.82 USD
MITSUBISHI WCMT06T304 US735 High-Performance CVD Coated Carbide | The Stainless Steel Authority Product Overview The Mitsubishi WCMT06T304 US735 is a robust 80° trigon indexable insert specifically engineered for high-demand stainless...
Mitsubishi WCMT06T304 UE6110 Carbide Turning Inserts for Steel Machining
$97.82 USD
MITSUBISHI WCMT06T304 UE6110 High-Speed Steel Turning Specialist | Premium CVD Coated Carbide Product Overview The Mitsubishi WCMT06T304 UE6110 is a high-performance 80° trigon-shaped positive turning insert, specifically engineered for the...
Mitsubishi WCMT040204 US735 Carbide Inserts for Stainless Steel Turning
$88.41 USD
MITSUBISHI WCMT040204 US735 Advanced CVD Coated Grade | The Stainless Steel Specialist Product Overview The Mitsubishi WCMT040204 US735 is a high-performance, 80° trigon positive turning insert designed specifically for stainless...
Mitsubishi WCMT020104 UE6110 Carbide Inserts for Steel Turning
$90.43 USD
MITSUBISHI WCMT020104 UE6110 High-Performance CVD Coated Carbide | Steel Turning Specialist Product Overview The Mitsubishi WCMT020104 UE6110 is a precision-engineered 80° trigon-shaped positive turning insert. It is specifically designed for...
Mitsubishi WCMT020104 NX2525 Cermet Turning Inserts for Steel Finishing
$70.96 USD
MITSUBISHI WCMT020104 NX2525 Uncoated Cermet Series | High-Mirror Surface Finish Specialist Product Overview The Mitsubishi WCMT020104 NX2525 is a premium 80° trigon indexable insert designed for the high-precision finishing of...
Mitsubishi WCMT020104 AP25N Cermet Inserts for Steel Finishing
$91.95 USD
MITSUBISHI WCMT020104 AP25N PVD Coated Cermet Grade | Mirror Finish Steel Specialist Product Overview The Mitsubishi WCMT020104 AP25N is a specialized 80° trigon turning insert designed for the high-precision finishing...
Mitsubishi WCMT020102 US735 Carbide Inserts for Stainless Steel Turning
$88.41 USD
MITSUBISHI WCMT020102 US735 Professional CVD Coated Grade | Specialized for Stainless Steel Product Overview The Mitsubishi WCMT020102 US735 is a premium 80° trigon-shaped positive turning insert. It is specifically engineered...
Mitsubishi WCGT020104L NX2525 Cermet Turning Insert | WCGT 0.60.51L
$78.94 USD
Mitsubishi WCGT020104L NX2525 High-Gloss NX2525 Cermet Grade for Precision Mirror Finishing The Mitsubishi WCGT020104L NX2525 is a high-precision 80° trigonal positive-type cermet turning insert. Engineered specifically for ultra-fine finishing of...
Mitsubishi WCGT020104L HTI10 Carbide Inserts for Aluminum & Non-Ferrous Metals
$102.31 USD
MITSUBISHI WCGT020104L HTI10 Super-Micro Grain Uncoated Carbide | Precision Aluminum Turning Product Overview The Mitsubishi WCGT020104L HTI10 is a high-precision, 80° trigonometric positive turning insert specifically engineered for non-ferrous materials....
Mitsubishi WCGT020102L HTI10 Uncoated Carbide Turning Insert | WCGT 0.60.50.5L
$78.94 USD
Mitsubishi WCGT020102L HTI10 Ultra-Sharp Uncoated Carbide for Aluminum & Non-Ferrous Metals The Mitsubishi WCGT020102L HTI10 is a high-precision 80° trigonal positive-type carbide turning insert. Unlike coated grades, the HTI10 uncoated...
Mitsubishi WCGT020102L NX2525 Cermet Turning Insert | WCGT 0.60.50.5L
$78.94 USD
Mitsubishi WCGT020102L NX2525 High-Gloss NX2525 Cermet Grade for Precision Mirror Finishing The Mitsubishi WCGT020102L NX2525 is a high-precision 80° trigonal positive-type cermet turning insert. Designed specifically for ultra-fine finishing of...
Mitsubishi WBGT030202L-F VP15TF Carbide Turning Insert | WBGT 1.21.1L-F
$100.85 USD
Mitsubishi WBGT030202L-F VP15TF Universal PVD Coated Grade for Ultra-Precision Finishing The Mitsubishi WBGT030202L-F VP15TF is a premium 80° trigonal positive-type carbide turning insert. Designed with the world-renowned VP15TF Miraculo PVD...
Mitsubishi WBGT020104L-F VP15TF Carbide Turning Insert | WBGT 0.60.51L-F
$94.95 USD
Mitsubishi WBGT020104L-F VP15TF Universal PVD Coated Miraculo Grade for High-Precision Profiling The Mitsubishi WBGT020104L-F VP15TF is a high-performance 80° trigonal positive-type carbide turning insert. Powered by the legendary VP15TF PVD...
Mitsubishi WBGT020104L-F NX2525 Cermet Turning Insert | WBGT 0.60.51L-F
$78.38 USD
Mitsubishi WBGT020104L-F NX2525 High-Gloss NX2525 Cermet Grade for Mirror-Finish Precision The Mitsubishi WBGT020104L-F NX2525 is a high-precision 80° trigonal positive-type cermet turning insert. Engineered specifically for ultra-fine finishing of steel...
Mitsubishi WBGT020102L-F VP15TF Carbide Turning Insert | WBGT 0.60.50.5L-F
$94.95 USD
Mitsubishi WBGT020102L-F VP15TF Universal PVD Coated Miraculo Grade for Precision Small-Part Turning The Mitsubishi WBGT020102L-F VP15TF is a high-precision 80° trigonal positive-type carbide turning insert. Featuring the legendary VP15TF PVD...
Mitsubishi WBGT020102L-F NX2525 Cermet Turning Insert | WBGT 0.60.50.5L-F
$78.38 USD
Mitsubishi WBGT020102L-F NX2525 High-Gloss NX2525 Cermet Grade for Mirror-Finish Precision The Mitsubishi WBGT020102L-F NX2525 is a high-precision 80° trigonal positive-type cermet turning insert. Engineered specifically for ultra-fine finishing of steel...
Mitsubishi WB / WP / WC 80° Trigon Inserts — WBGT, WCGT, WCMT Small-Diameter Swiss-Type Profiling
17 in-stock 80° trigon Mitsubishi indexable carbide turning inserts covering 3 geometry families (WBGT / WCGT / WCMT) and 7 grade families (VP15TF / NX2525 / US735 / UE6110 / UTI20T / HTI10 / AP25N). IC sizes 2.0 to 6.0 mm — designed for Swiss-type lathes, watch parts, medical screws, and small-diameter profiling. 2-3 day dispatch from Zhejiang warehouse, DHL/UPS worldwide 3-7 days, all ISO 1832 compliant.
17SKUs in Stock
3Geometry Families
2-6mmIC Size Range
80°Trigon Angle
About 80° Trigon Inserts (W-Style)
The ISO 1832 W-shape family delivers an 80° trigon (triangular with 80° apex angle) — a less common geometry optimized for very small-diameter profiling. Mitsubishi's 80° trigon lineup covers three clearance variants:
- WB (5° positive rake) — Sharp edge, low cutting force. Used for finish profiling on small-diameter parts (under 6 mm).
- WP (11° positive rake) — Sharper than WB, used for ultra-precision profiling on Swiss-type lathes. (Not currently stocked; request quote.)
- WC (7° negative rake) — Slightly stronger edge. Used when profiling meets light interruptions or for general small-diameter turning.
The W-shape trigon is the geometry of choice for parts with IC under 6 mm — the same triangular shape as T-style 60° but with a wider 80° angle that distributes cutting forces more evenly on tiny inserts, reducing chipping. Typical applications include Swiss-type lathe watch parts (pinion shafts, balance staffs), medical bone screws (Ø 1.5-3.0 mm), electronic connector pins, and instrument components.
3 Geometry Families — Featured In-Stock SKUs
Below are 12 representative SKUs from our 17-piece 80° trigon inventory, covering all 3 geometry families. Click through to verify grade specs, IC size, nose radius, and full dimensional drawings.
WBGT — Positive 5° (G chip-breaker)
5 SKUs. Ground-periphery WBGT with chip-breaker on one face. Premium 80° trigon for finish profiling and mirror surface work on stainless and alloy steel at small diameters.
VP15TFNX2525
WCGT — Negative 7° (G chip-breaker)
4 SKUs. Ground-periphery WCGT with chip-breaker on one face, negative rake. Used for precision profiling of stainless and aluminum on Swiss-type lathes. The HTI10 (uncoated) variants are for aluminum/non-ferrous.
NX2525HTI10
WCMT — Negative 7° (M chip-breaker, T tolerance)
8 SKUs. T-tolerance with M chip-breaker on both faces. Workhorse negative 80° trigon geometry for stainless steel, alloy steel, and cast iron profiling. Available in IC sizes 2.0 / 4.0 / 6.0 mm.
US735UE6110UTI20TNX2525AP25N
Browse by Application & Grade
All 17 80° trigon SKUs are grouped below by application and grade. Click any category to filter the full catalog.
By Workpiece Material
- Stainless Steel 304/316 (M-grade) — WCMT-US735, WBGT-VP15TF
- Alloy Steel / Carbon Steel (P-grade) — WCMT-UE6110
- Cast Iron (K-grade) — WCMT-UTI20T
- Aluminum & Non-Ferrous (N-grade) — WCGT-HTI10
- Mirror Finishing / Precision — WBGT-NX2525, WCGT-NX2525, WCMT-AP25N (cermet)
By Operation
- Swiss-Type Profiling (Ø < 6 mm) — WCMT 06/04/02 series
- Mirror Surface Finishing — WBGT/WCGT with NX2525 cermet
- Stainless Steel Watch Parts — WBGT/WCMT with US735 or VP15TF
- Medical Bone Screws (Ø 1.5-3 mm) — WCMT 0201/0202 series
- Aluminum Connector Pins — WCGT with HTI10 (uncoated)
By Carbide Grade
- CVD Stainless Steel (M-grade) — US735 (M10-M25)
- PVD Universal (Miracle Coat) — VP15TF (Al-rich, P/M/S grades)
- CVD Steel (P-grade) — UE6110 (P20-P30)
- Cermet (Finishing) — NX2525 + AP25N (P05-P15, mirror surface)
- Uncoated Carbide — HTI10 (aluminum), UTI20T (cast iron)
W vs T vs C vs D — 4-Way Geometry Comparison
Where does the 80° W-shape fit among Mitsubishi's turning lineup? This table compares W-style 80° trigon against T-style 60° triangle, C-style 80° diamond, and D-style 55° diamond.
| Attribute | W (80° trigon) | T (60° triangle) | C (80° diamond) | D (55° diamond) |
|---|---|---|---|---|
| Shape | Trigon (triangular 80°) | Equilateral triangle | 80° rhombic | 55° rhombic |
| Included angle | 80° (apex) | 60° | 80° | 55° |
| Typical IC range | 2.0-6.0 mm | 6.0-22.0 mm | 6.0-19.0 mm | 5.0-15.0 mm |
| Best for | Small-Ø profiling | General turning | General turning | General profiling |
| Edge strength | ★★★ (small IC) | ★★★★★ (largest) | ★★★★ | ★★★ |
| Edge sharpness | ★★★★ | ★★★ | ★★★ | ★★★★ |
| Nose radius options | 0.1-0.4 mm | 0.2-1.2 mm | 0.2-0.8 mm | 0.2-0.4 mm |
| Common holders | SWUB / MWUB | MTJN / PTFN | DCLN / SCLN | SDJC / SDKN |
| Common workpiece | Watch, medical, electronics | Steel, cast iron | Steel, cast iron | Shaft, slender |
| Catalog count (Mitsubishi) | 17 (this collection) | 100+ | 25+ | 15+ |
| Best grade pairing | US735, VP15TF, NX2525 | UE6020, VP15TF, UC5115 | UE6020, VP15TF | VP15TF, F7030 |
Bottom line: The 80° W-shape trigon is the go-to geometry for Swiss-type lathes — it can be ground to very small IC (down to 2.0 mm) where 60° T-style and 80° C-style cannot. For IC ≥ 6 mm, the T-style 60° triangle is stronger and more economical. For profiling larger diameters (≥ 10 mm) on a standard lathe, switch to D-style 55° or C-style 80°.
How to Choose the Right 80° Trigon Insert — 3-Step
Step 1 — Identify the Operation
- Swiss-type profiling (Ø < 6 mm): WCMT 06/04/02 series. Standard workhorse geometry for Citizen, Star, Tsugami Swiss lathes.
- Mirror surface finishing on small parts: WBGT or WCGT with NX2525 cermet. Ground periphery + cermet = mirror finish.
- Aluminum connector pins: WCGT with HTI10 (uncoated sharp edge).
- Stainless watch parts: WCMT with US735 (M-grade) or WBGT with VP15TF (PVD universal).
Step 2 — Match the Grade to Workpiece
- Stainless steel 304/316 (watch, medical): US735 (CVD stainless) or VP15TF (PVD universal). US735 for heavier profiling, VP15TF for finish.
- Alloy steel / tool steel: UE6110 (CVD steel P20-P30).
- Cast iron: UTI20T (uncoated, K-grade).
- Aluminum / non-ferrous: HTI10 (uncoated sharp edge).
- Mirror finishing (cermet): NX2525 or AP25N (P05-P15 cermet grades).
Step 3 — Verify Holder Compatibility
- WB / WP (positive 5° / 11°): Use SWUB / SWUP Swiss tool holders (positive rake pockets).
- WC (negative 7°): Use MWUN negative Swiss tool holders (negative rake pockets).
- Verify IC fit: WCMT 02 series needs 2.0 mm pocket; WCMT 04 needs 4.0 mm; WCMT 06 needs 6.0 mm. Some Swiss lathes only accept specific IC sizes — check your tool block.
Frequently Asked Questions
What is the difference between WB, WP, and WC 80° trigon inserts?
WB has 5° positive clearance (sharp, low cutting force); WP has 11° positive clearance (sharpest, ultra-precision); WC has 7° negative clearance (stronger, light interrupted cuts). WB and WC are stocked; WP is not currently in stock and must be requested by quote.
Why does this collection only have WB and WC types but the handle says WB / WP / WC?
WP (11° positive clearance) is a less common variant — very few modern CNC turning programs use the sharper 11° rake on small-IC trigon inserts. We currently stock WB (5 SKUs) and WC (4 SKUs) but no WP. If you need a specific WP-style insert (e.g., WPGT020102), please request a quote — we can source on-demand within 5-7 days from our OEM partners.
What is the difference between WCMT and WCGT?
WCMT uses M-tolerance (precision molded) with M chip-breaker (both faces) — the workhorse 80° trigon for general profiling. WCGT uses G-tolerance (ground periphery) with G chip-breaker (one face) — premium precision for finishing. WCGT is typically used with NX2525 cermet for mirror surface work; WCMT is the workhorse for general stainless and alloy steel profiling.
Which W-style insert is best for Swiss-type lathe watch parts (Ø 1.5-3 mm)?
For Swiss-type watch parts in this size range, we recommend WCMT020104 (2.0 mm IC, 0.4 mm nose radius) with grade US735 (stainless steel) or NX2525 (cermet mirror finish). The 2.0 mm IC fits the standard Swiss tool block pocket, and the 0.4 mm nose radius gives the best surface finish at this small scale. For aluminum watch parts (rare), use WCGT020104-HTI10.
Can I use WCMT inserts on a standard CNC lathe, or only Swiss-type lathes?
WCMT inserts work on any CNC lathe that has a compatible tool holder (MWUN for negative rake). However, they are most popular on Swiss-type lathes because the small IC (2.0-6.0 mm) matches the typical Swiss tool block geometry. On a standard 2-axis CNC lathe, you would need a special small-IC turning holder — most general turning holders (DCLN, MCLN, etc.) accept larger IC inserts (≥ 12 mm). For small-diameter work on a standard lathe, dedicated small-IC boring bars are also an option.
What is the smallest and largest 80° trigon insert you stock?
Smallest: WBGT020102L-F and WCGT020102L (2.0 mm IC, 0.2 mm nose radius — ultra-precision profiling). Largest: WCMT06T304 (6.0 mm IC, 0.4-0.8 mm nose radius — for general small-diameter profiling). The 80° W-shape geometry is typically limited to IC 2.0-6.0 mm due to grinding complexity at very small sizes.
Related Mitsubishi Inserts & Holders
Need a Specific 80° Trigon Insert Not in Stock?
17 in-stock SKUs covering WBGT / WCGT / WCMT. For WP-style 11° positive rake, specialty WBMW, WCMW, or specific Mitsubishi equivalent cross-references (Sandvik / Kennametal / Iscar / Walter), request a quote — 24-hour response, 2-3 day dispatch from Zhejiang, DHL/UPS worldwide 3-7 days.
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