Mitsubishi MMT16ER140W-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16ER140UN-S VP15TF External Threading Insert
Mitsubishi MMT16ER140BSPT-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16ER125ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16ER120UN-S VP15TF External Threading Insert
Mitsubishi MMT16ER110W-S VP15TF External Threading Insert
Mitsubishi MMT16ER110BSPT-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16ER100ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16ER150ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT11IRA60-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT11IRA55-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT11IR150ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT11IR125ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT11IR100ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16IRG55-S VP15TF Internal Threading Insert
Mitsubishi MMT16IRA60-S VP15TF Internal Threading Insert
Mitsubishi MMT16IRA55-S VP15TF Internal Threading Insert
Mitsubishi MMT16IR300ISO-S VP15TF Threading Insert | MMC Japan
Mitsubishi MMT16IR250ISO-S VP15TF Internal Threading Insert
Mitsubishi MMT16IR200ISO-S VP15TF Threading Insert | MMC Japan
Browse 44 Mitsubishi MMT threading inserts in 4 ISO 1832 geometries (16ER / 16IR / 11ER / 22ER) with 2 carbide grades (US7020 CVD steel + VP15TF PVD stainless). Sourced directly from Mitsubishi Materials' authorized Japanese production line (Saitama, since 1950) and shipped from our Hong Kong warehouse at 30-50% below OEM list price. Same-day shipping to 50+ countries via DHL/UPS/FedEx. ISO 9001 certified.
4 ISO Threading Geometries in This Catalog
| Geometry Code | Meaning | Best For | Compatible Tool Holder |
|---|---|---|---|
| 16ER | 16 mm IC, External, Right-hand (workhorse) | General-purpose external thread turning on steel & stainless (most common) | Mitsubishi SER-1616H / SER-2020K series |
| 16IR | 16 mm IC, Internal, Right-hand | Internal thread boring bars; M-class internal threads | Mitsubishi SIR-0020 / SIR-3025 series boring bars |
| 11ER | 11 mm IC, External, Right-hand (smaller) | Small workpiece external threading; fine pitch threads | Mitsubishi SER-1010E / SER-1212F series |
| 22ER | 22 mm IC, External, Right-hand (larger) | Large workpiece external threading; coarse pitch threads | Mitsubishi SER-2525M / SER-3232P series |
ISO 1832 Threading Insert Code Explained
A complete Mitsubishi threading insert code (e.g. 16ER 1.0 ISO) has 4 parts:
- 16 = Inscribed circle (IC) size, unit 1/16" — 16 means 16/16" = 1.0" (25.4 mm) cutting diameter
- E = External thread (cutting on the outside of a workpiece) or I = Internal thread (cutting on the inside of a bore)
- R = Right-hand thread (most common, clockwise rotation cuts) or L = Left-hand thread (rare)
- 1.0 ISO = Pitch (1.0 mm between threads) + Thread profile (ISO metric, UN, BSPT, NPT, ACME, Trapezoidal)
Use full-profile inserts (e.g. 16ER 1.0 ISO) for standard thread shapes — easiest setup. Use partial-profile inserts (e.g. 16ER 1.5 ISO) for non-standard pitches between the insert's min/max pitch range — more flexible, single insert covers multiple pitches.
3 Typical Threading Applications
- External Thread Turning — Cut threads on the outside of a shaft or cylinder. Use 16ER / 11ER / 22ER on a standard external tool holder (e.g. Mitsubishi SER series). Common thread profiles: ISO metric M3-M24, UN 1/4"-1", BSPT, ACME. Multiple passes required (roughing + finishing).
- Internal Thread Turning — Cut threads on the inside of a bore. Use 16IR on an internal boring bar (e.g. Mitsubishi SIR series). Internal threading requires low cutting forces to avoid vibration. Best for M-class threads in hydraulic fittings, valve bodies, pipe couplings.
- API / Pipe Threading — Petroleum industry threads (API 5B, API 7-2) on drill pipe, casing, tubing. Use 16ER / 16IR with full-profile inserts designed for the specific API thread form. Requires coolant-through holders and high-pressure coolant.
Mitsubishi Threading Grade Cross-Reference
| Mitsubishi Grade | Coating | ISO Application | Recommended For | Sandvik | KORLOY | Tungaloy |
|---|---|---|---|---|---|---|
| US7020 | TiN+Al2O3 CVD | P20-P30 steel | General steel threading (Mitsubishi's flagship CVD grade) | GC4325 | NC3030 | T6130 |
| VP15TF | TiAlN PVD | M15-M25 stainless, S15-S25 high-temp alloys | Stainless steel & Inconel threading | GC2040 | PC9030 | T9200 |
Compatible Tool Holders
All Mitsubishi 16ER / 16IR / 11ER / 22ER inserts in this catalog fit any standard ISO 1832 threading tool holder of the matching IC size. Direct-fit with:
- Mitsubishi SER series (external), SIR series (internal) tool holders
- Sandvik T-Max Threading, Q-Cut series (cross-compatible 16ER/16IR)
- Tungaloy Threading series
- KORLOY Threading series
Browse our External Threading Tool Holders for SER 11/16/22 ER holders, or our Internal Threading Tool Holders for SNR/SNL boring bars.
Six Topic Cluster Pillars
Reading from the Field
Frequently Asked Questions
What does the "16" mean in Mitsubishi 16ER / 16IR threading insert codes?
The number is the inscribed circle (IC) size in 1/16" units. 16 means 16/16" = 1.0" (25.4 mm) cutting diameter. Other common sizes: 11 = 11/16" (17.5 mm, for small workpieces), 22 = 22/16" = 1.375" (34.9 mm, for large workpieces). The IC size must match the tool holder pocket size — use a 16ER insert in a 16-size external holder.
What's the difference between full-profile and partial-profile threading inserts?
Full-profile inserts (e.g. 16ER 1.0 ISO) have a specific thread shape locked in — they cut exactly one pitch (e.g. 1.0 mm). Easiest setup, best thread geometry. Partial-profile inserts (e.g. 16ER 1.5 ISO) have a V-shaped cutting edge that covers a range of pitches (e.g. 1.5-3.0 mm). Single insert handles multiple pitches, but thread geometry is slightly less optimal. Use full-profile for production runs of the same thread; use partial-profile for job shops with varying thread specs.
What Mitsubishi grade should I use for stainless steel threading?
Use VP15TF (PVD TiAlN) for stainless steel threading. VP15TF is Mitsubishi's premium stainless grade, equivalent to Sandvik GC2040 and KORLOY PC9030. For general carbon steel, use US7020 (CVD TiN+Al2O3). For cast iron threading, Mitsubishi also offers US7020 (CVD grades work for both steel and cast iron).
Are Mitsubishi threading inserts interchangeable with Sandvik or Tungaloy?
Yes — 16ER, 16IR, 11ER, and 22ER are ISO 1832 standard threading insert geometries, so Mitsubishi inserts are dimensionally interchangeable with Sandvik, Tungaloy, KORLOY, and TaeguTec equivalents (same IC size, same pocket geometry). You can switch brands without changing the threading tool holder.
Do you offer same-day shipping for Mitsubishi threading inserts to international destinations?
Yes. All 44 Mitsubishi MMT threading inserts in this catalog ship same-day from our Hong Kong warehouse with DHL Express to US/EU destinations in 3-7 business days. We serve 50+ countries with ISO 9001 certified supply chain. Volume discounts: 2-9 pcs 6% off, 10+ pcs 12% off. Each insert ships with Mitsubishi lot traceability documentation and original box packaging.
How do I request a Mitsubishi equivalent of a competitor threading insert?
Email chao@cnchome-beyond.com with the competitor SKU (e.g., "Sandvik GC4325 in 16ER 1.0 ISO" or "Tungaloy T6130 in 16ER 1.5 ISO") and the workpiece material. We'll send back a matched Mitsubishi equivalent (US7020 for steel or VP15TF for stainless) with grade cross-reference and 24h landed-price quote including DHL/UPS/FedEx freight to your country. WhatsApp +86 159-9066-3752 for faster response.
Get Mitsubishi Threading Inserts Quoted in 24 Hours
Send us your Mitsubishi threading insert reference (e.g. MMT16ERG60-S VP15TF for stainless steel partial-profile 60° thread, or 16ER 1.0 ISO US7020 for general steel) and we will return a landed-price quote including DHL/UPS/FedEx freight to your country. Volume discounts: 2-9 pcs 6% off, 10+ pcs 12% off. We accept PO from automotive, aerospace, oil & gas, hydraulic fitting, valve, and general machining manufacturers.
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