High-performance threading insert 16ER for metric full profiles
The PVD-coated threading insert 16ER with a 60° flank angle is tailored to the demanding requirements of modern turning operations. Featuring an exact full profile geometry and the resilient universal grade RT315, it enables clean and precise external threads. This indexable insert cuts the complete thread profile, ensuring an accurately formed root and defined flanks. It supports highly productive and repeatable machining across a wide range of workpiece materials.
Suitable materials

Technical data
- Insert size: 16
- Inside/Outside thread: Outside (ER)
- Direction: Right
- Thread type: Metric
- Profile: Full profile
- Flank angle: 60°
- Grade: RT315 (PVD-coated solid carbide, P15-P25 / M10-M25)
- Packaging unit: 2 pieces
Dimensions of threading insert 16ER
|
Item Nr. |
ISO |
Pitch |
I.C |
S |
d |
| 16ER-V-ISO-1,0-G RT315 |
1881300 |
16 |
1,0mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-1,25-G RT315
|
1881301 |
16 |
1,25mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-1,5-G RT315
|
1881302 |
16 |
1,5mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-1,75-G RT315
|
1881303 |
16 |
1,75mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-2,0-G RT315
|
1881304 |
16 |
2,0mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-2,5-G RT315
|
1881305 |
16 |
2,5mm |
9,525 |
3,52 |
4 |
16ER-V-ISO-3,0-G RT315
|
1881306 |
16 |
3,0mm |
9,525 |
3,52 |
4 |
Cutting data
| ISO |
Material |
Cutting Data |
| P |
Steel |
Vc= 80-150 m/min |
| M |
Stainless Steel |
Vc= 80-120 m/min |
| N |
NF-Metals |
Vc= 120-300 m/min |
| S |
Special Materials |
Vc= 20-60 m/min |
Applications
The 16ER indexable insert is well-suited for thread turning in a broad range of industries, from mechanical engineering to general manufacturing. Its PVD-coated cutting edge reliably machines standard steels, stainless steels, non-ferrous metals such as aluminum or brass, and difficult-to-machine special alloys. Specifically designed for external threading (ER), it allows the precise production of shafts, tubes, and threaded bolts with metric pitches.
Furthermore, the RT315 solid carbide grade proves highly advantageous for universal applications, as it can eliminate the need to switch cutting materials when transitioning between different standard workpieces. This helps reduce setup times and increases overall flexibility on the lathe.
Special features
A key advantage of this threading insert is its full profile design. It completely forms the thread geometry, cleanly cutting both the thread root and crest. This eliminates any need for subsequent deburring or finishing of the thread crests. Additionally, the ISO-standardized 60° profile provides excellent profile fidelity along the entire length of the workpiece.
The protective PVD coating of the RT315 grade grants the insert very good wear resistance. It effectively shields the carbide substrate against thermal stress, thereby supporting consistently high thread surface quality and a reliable, stable machining process.