Mitsubishi MTTR436002 NX2525 Threading Insert | MMC Japan
Mitsubishi GY2M0300F150N-BM VP20RT Grooving Insert | MMC Japan
Mitsubishi GY2M0300F030N-GM VP20RT Grooving Insert | MMC Japan
Mitsubishi GY2M0300F030N-GM VP10RT Grooving Insert | MMC Japan
Mitsubishi GY2M0300F020N-MS NX2525 Grooving Insert | MMC Japan
Mitsubishi GY2M0200D020N-MS VP20RT Grooving Insert | MMC Japan
Mitsubishi GY2M0200D020N-MM VP20RT Grooving Insert | MMC Japan
Mitsubishi MTTR436001 UTI20T Threading Insert | MMC Japan
Mitsubishi MLG2040L UTI20T Grooving Insert | MMC Japan
Mitsubishi MLG1420L UTI20T Grooving Insert | MMC Japan
Mitsubishi MLG1415L UTI20T Grooving Insert | MMC Japan
About Mitsubishi Grooving Inserts
Mitsubishi Materials grooving and threading inserts are precision-engineered for high-feed parting, grooving, recessing, and trapezoidal threading on CNC lathes. The Mitsubishi GY2M and MLG series are the workhorses of the line, with chip-breaker geometries that handle the chip control challenges of deep grooving and profiling cuts in steel, stainless, and heat-resistant alloys. The Mitsubishi MTTR43 series covers full-profile trapezoidal threading (TR) and ACME thread forms in a single insert.
Every Mitsubishi insert on this page is genuine OEM product from Mitsubishi Materials Corporation (Japan, est. 1950), shipped with full lot traceability. CNCHome-Beyond is an authorized Mitsubishi distributor; orders placed before 3 PM China time ship same-day from our Hangzhou warehouse with DHL/UPS/FedEx express delivery in 3-7 business days.
Mitsubishi Grooving Series at a Glance
| Series | Geometry | Width Range | Application |
|---|---|---|---|
| GY2M | Full-radius grooving with chip-breaker | 2.0 - 3.0 mm | General purpose grooving, profiling, recessing |
| MLG | Light grooving, sharp edge | 1.4 - 2.0 mm | Shallow grooves, small-diameter parting |
| MTTR43 | Full-profile trapezoidal threading | TR 43 (4-6 mm pitch) | Trapezoidal ACME threads, lead screws |
Need to compare with other brand geometries? See our complete Insert Grade Cross-Reference Tool and SKU Cross-Reference for direct equivalents between Mitsubishi, Sandvik, Kennametal, Iscar, Walter, and SECO.
Popular Mitsubishi Grades for Grooving
| Grade | Coating | Workpiece | Recommended Speed |
|---|---|---|---|
| NX2525 | CVD TiCN/Al2O3 multi-layer | Steel (P10-P30) | 120-180 m/min |
| VP20RT | PVD TiAlN nano-laminate | Stainless (M15-M30) | 80-150 m/min |
| VP10RT | PVD TiAlN super-nano | Hardened steel, heat-resistant alloys (S10-S20) | 50-100 m/min |
| US7020 | CVD thick TiCN/Al2O3 | Steel high-feed roughing | 150-220 m/min |
| UTI20T | Uncoated cermet | Cast iron, aluminum (K05-K15) | 200-300 m/min |
Tip: Use our Speeds & Feeds Calculator to dial in the exact cutting parameters for your specific grade, workpiece, and machine setup.
How to Choose a Mitsubishi Grooving Insert
Step 1: Match the series to groove width. For grooves 1.4-2.0 mm wide, use MLG series with sharp edge. For 2.0-3.0 mm grooves, use GY2M with chip-breaker. For wider grooves above 3.0 mm, use the GY series heavy-duty line (not listed on this page; contact us for quote).
Step 2: Match the grade to material. Steel → NX2525 or US7020. Stainless → VP20RT. Hardened steel (HRC 45+) or Inconel → VP10RT. Cast iron or aluminum → UTI20T.
Step 3: Match the holder. GY2M and MLG inserts fit the Mitsubishi GW (grooving) tool holder series. MTTR43 fits the MS-DT/L type threading holders. CNCHome-Beyond carries compatible aftermarket holders at 30-50% below OEM price — see our complete turning tool holder guide and use the Insert Holder Selector to find your match.
Compatible Tool Holders
GY2M and MLG inserts are designed for use with the following CNCHome-Beyond tool holder families (all ISO 5608 standard, drop-in compatible with Mitsubishi OEM holders):
- Screw-Clamp Boring Bars — for internal grooving with bar-style holders
- Multi-Lock External Holders — for general external grooving
- Lever-Lock (P-Type) External Holders — for quick-change high-mix production
- Double-Clamp Boring Bars — for heavy-duty interrupted-cut grooving
- External Threading Holders — for MTTR43 trapezoidal threading
- Internal Threading Holders — for ID threading applications
- Multi-Functional Internal Grooving Holders — for face and ID grooving
- Multi-Functional External Grooving Holders — for face slotting
Need help matching inserts to holders? Use our Insert Holder Selector Tool for a guided 3-step match.
Cross-Brand Equivalents
Mitsubishi grooving geometries are dimensionally interchangeable with other major brands. Direct equivalents:
| Mitsubishi | Sandvik | Kennametal | Iscar | Walter |
|---|---|---|---|---|
| GY2M (grooving) | Q5 + MF1 chip-breaker | KGMR | GIMF | GX24 |
| MLG (light grooving) | QF + MF2 | KGMN | DGN | GX22 |
| MTTR43 (trapezoidal) | Q5 + TR43 profile | KTR43 | TR43 family | TR43 family |
Looking for a Sandvik or Walter equivalent at lower cost? See our best-selling grooving inserts across all brands, or request a free sample catalog for cross-brand comparison.
Frequently Asked Questions
What is the difference between Mitsubishi GY2M and MLG inserts?
GY2M is the heavy-duty grooving series with chip-breaker geometry, available in 2.0-3.0 mm widths. It handles higher feed rates (0.10-0.20 mm/rev) and works in deeper grooves up to 6mm depth. MLG is the light grooving series for shallow grooves 1.4-2.0 mm wide, designed for sharp-edge profile work and small-diameter parting. Use GY2M for general production, MLG for precision profile work.
What is the equivalent of Mitsubishi GY2M in other brands?
Mitsubishi GY2M geometry is the industry-standard full-radius grooving insert with chip-breaker. Direct equivalents include: Sandvik Q5 + MF1 chip-breaker, Kennametal KGMR, Iscar GIMF, Walter GX24, and SECO 150.10. All are dimensionally interchangeable on the same GW-series holder type. For grade cross-reference, see our Insert Grade Cross-Reference Tool and Mitsubishi Grade Finder.
What is Mitsubishi MTTR43 used for?
MTTR43 is a full-profile trapezoidal threading insert with a 4 mm tooth pitch (TR 43). It is the standard geometry for ACME-style lead screws, machine tool feed screws, and valve stem threading. Available in 2 inserts (MTTR436001 and MTTR436002) covering external and internal trapezoidal threads. Compatible grades: UTI20T for aluminum/cast iron, NX2525 for steel, VP20RT for stainless. Pair with our External Threading Holders for a complete threading setup.
What is the difference between VP20RT and VP10RT grades?
VP20RT is the workhorse PVD grade for stainless steel grooving (M15-M30 ISO classification). VP10RT is the premium PVD grade for hardened steel (HRC 45+), heat-resistant alloys, and Inconel. VP10RT has a thicker AlTiN coating and can run 50-100 m/min on difficult materials. For most stainless steel grooving applications, VP20RT is the cost-effective choice.
Can Mitsubishi GY2M inserts be used for parting off?
GY2M is designed for grooving and recessing, not full parting off. For parting off (cutting completely through the workpiece), use the Mitsubishi GY-P series or GY series parting inserts which are designed with stronger cutting edges and chip-breaker geometry for full-width parting. CNCHome-Beyond can source Mitsubishi GY-P parting inserts on-demand — contact us for quote.
What is the minimum order quantity for Mitsubishi grooving inserts?
Sample orders start at 1 piece for grade validation. Standard production orders are 10-50 pieces per item. Bulk pricing tiers: 2-9 pieces 6% off, 10+ pieces 12% off (auto-applied at checkout). For custom grades not in our standard catalog, MOQ is 200 pieces with 6-8 week lead time from Mitsubishi Japan. See our warranty and return policy for details on grade validation samples.
Related Mitsubishi Collections
Order Mitsubishi Grooving Inserts or Request a Quote
Need a grade or width not in our standard catalog? Send us a part number, grade spec, and quantity — we will return a formal quote within 24 hours. Custom Mitsubishi geometries available on 6-8 week lead time.
CNCHome-Beyond — Authorized Mitsubishi Distributor. Genuine OEM product, full lot traceability, same-day dispatch from Hangzhou for orders placed before 3 PM China time.
Want to know more about Mitsubishi grades, coating technology, or chip-breaker selection? Read our CNC tooling knowledge base or check the complete cross-reference tool for grade-to-grade equivalents.