KORLOY ERM16-3.0ISO PC9030 Indexable External Threading Inserts | 16ER 3.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
KORLOY ERM16-2.5ISO PC9030 Indexable External Threading Inserts | 16ER 2.5 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
KORLOY ERM16-2.0ISO PC9030 Indexable External Threading Inserts | 16ER 2.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
KORLOY ERM16-1.5ISO PC9030 Indexable External Threading Inserts | 16ER 1.5 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
KORLOY ERM16-1.0ISO PC9030 Indexable External Threading Inserts | 16ER 1.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
KORLOY ERM16-AG60 PC9030 Indexable External Threading Inserts | 16ER AG60 PC9030 (ANSI Equivalent) PVD Coated Carbide Multi-Pitch Threading Cutters - 10pcs/box
KORLOY ERM16-AG55 PC9030 Indexable External Threading Inserts | 16ER AG55 PC9030 (ANSI Equivalent) PVD Coated Carbide 55-Degree Partial Profile Threading Cutters - 10pcs/box
Korloy Threading Carbide Inserts
Genuine Korloy 16ER/16IR external and internal threading inserts for metric and ISO thread profiles on steel, stainless, and cast iron. Choose from Korloy threading SKUs in IC 9.525mm and 12.7mm sizes with PC9030 grade options for precision thread turning.
Authentic Korloy from Daegu, Korea — distributed by cnchome-beyond.com under authorized channel. Original CVD/PVD coating, premium carbide substrate, factory-packaged with full traceability.
Browse the full THREADING Korloy catalog, or jump to: About · Featured SKUs · All Categories · Grades · FAQ.
Korloy-Original Inserts from Korea
All 7 inserts in this catalog are 100% genuine Korloy — manufactured by Korloy in Daegu, Korea. Each insert is sourced through Korloy's authorized distribution channels and ships in original factory packaging with full traceability. Korloy's premium carbide substrates, CVD/PVD coatings, and edge-preparation processes are specified across the full NC series (CVD coated steel/stainless), PC series (PVD coated stainless/steel), CN series (cermet steel finishing), CC series (cermet aluminum), H-series (uncoated aluminum), KC series (cast iron) grade families — providing the consistent performance and reliability that has made Korloy a leading cutting-tool brand.
About Threading Carbide Inserts
Genuine Korloy 16ER/16IR external and internal threading inserts for metric and ISO thread profiles on steel, stainless, and cast iron. Choose from Korloy threading SKUs in IC 9.525mm and 12.7mm sizes with PC9030 grade options for precision thread turning.
The THREADING family includes sub-designations:
- ERM — ERM — Standard geometry
Korloy is one of the world's leading manufacturers of CNC cutting tools, with decades of carbide expertise. Korloy's grade lineup represents decades of coating and substrate development for ISO P / M / K / N applications.
Featured Korloy THREADING Inserts
Twelve representative selections from our 7-SKU Korloy THREADING catalog:
KORLOY ERM16-3.0ISO PC9030 Indexable External Threading Inserts | 16ER 3.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-2.5ISO PC9030 Indexable External Threading Inserts | 16ER 2.5 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-2.0ISO PC9030 Indexable External Threading Inserts | 16ER 2.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-1.5ISO PC9030 Indexable External Threading Inserts | 16ER 1.5 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-1.0ISO PC9030 Indexable External Threading Inserts | 16ER 1.0 ISO PC9030 (ANSI Equivalent) PVD Coated Carbide Metric Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-AG60 PC9030 Indexable External Threading Inserts | 16ER AG60 PC9030 (ANSI Equivalent) PVD Coated Carbide Multi-Pitch Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
KORLOY ERM16-AG55 PC9030 Indexable External Threading Inserts | 16ER AG55 PC9030 (ANSI Equivalent) PVD Coated Carbide 55-Degree Partial Profile Threading Cutters - 10pcs/box
Standard Korloy THREADING insert for general turning.
View All 7 Korloy THREADING Inserts →
All Categories — Organized by Sub-Designation & IC Size
This catalog spans 1 sub-designation with 7 total SKUs. Each sub-designation is engineered for a specific application range:
ERM — ERM — Standard geometry (7 SKUs)
Standard Korloy ERM geometry. See grade options below.
Korloy Grade Family Reference
1 grade families cover the full ISO application range:
| Korloy Grade | Type | ISO | Best For |
|---|---|---|---|
| PC9030 | PVD | P15-P30 / M15-M30 | Steel + stainless premium |
How to Choose the Right Korloy THREADING Insert
Selecting the correct Korloy THREADING insert involves three decisions:
- Material → Grade: Steel → TT7015 / TT8115. Stainless → TT8020 / TT9225. Cast iron → KT-series. Aluminum → US-series.
- Sub-designation → Operation: General turning → ERM. Finishing → ERM. Heavy roughing → thicker section.
- IC size → Tool holder: Smaller IC fits compact holders. Larger IC for heavy-duty work.
Tip: For stainless steel work, Korloy TT9225 (CVD M-grade) provides superior wear resistance. For aluminum, use uncoated US-series with sharp-edge geometry.
Frequently Asked Questions
Are these genuine Korloy original inserts?
Yes — all 7 products in this catalog are 100% genuine Korloy originals. Each insert ships in original factory packaging with full traceability.
What is the difference between the THREADING sub-designations?
The THREADING family includes sub-designations like ERM. Each sub-designation has a specific tolerance class, edge preparation, and intended use. M-class (middle) is the workhorse for general turning; G-class (ground) is precision-sharp for finishing; the heavier variants are for roughing.
What grade should I choose for stainless steel?
For stainless steel work, Korloy recommends TT9225 (CVD M-grade) for general work and TT8020 (PVD grade) for finishing. Choose TT9225 for heavier roughing on tough stainless.
What tool holder do I need for THREADING inserts?
Korloy THREADING positive-rake (7° positive rake) inserts fit standard tool holders. Browse our turning tool holder catalog for compatible options.
How does Korloy compare to Sandvik / Kyocera / Sumitomo?
Korloy's TT-series PVD/CVD-coated inserts are direct competitors to Sandvik GC4325 and Kyocera PR1535 in steel. The CT-series cermet and CVD grades match Kyocera TN60 and Sandvik GC1525. Korloy is also known for cast iron (KT-series) and aluminum (US-series).
Need Help Selecting the Right Korloy THREADING Insert?
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Related Korloy & Cross-Brand Catalogs
Korloy Master Catalog
Full Korloy carbide insert lineup across all geometries and grades.
Korloy THREADING — Current
This collection with all 7 SKUs.
Korloy, TT, CT, KT, US, A-series are trademarks and grade designations of Korloy (Korea). Distributed by cnchome-beyond.com — Super Industrial Trading Co., Ltd, Hangzhou, China.