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Description
Technical data of insert for metric external threads 16 ER 1,25 mm
| Technical data | |
|---|---|
| Side length L | 16 mm |
| Thread profile | 60 degrees |
| Insert type | Metric External Right / Internal Left Thread |
| Thread pitch range P | 1.25 mm |
| Example application | M8, M10x1.25, M12x1.25, M14x1.25, M16x1.25 |
| Thread profile | solid ISO |
| Carbide grade MTA | Suitable for carbon steel, alloy steel, cast iron, stainless steel, cast steel, cast iron and non-ferrous metals |
Turning insert for metric threads 16 ER 1.25 mm VK2P Vardex
The 16 ER 1.25 ISO VK2P thread turning insert is a full metric profile tool made of VK2P grade carbide for threading with a pitch of 1.25 mm. The insert for right-hand external metric thread s with complete ISO outline performs M8 threads and fine threads M10x1.25, M12x1.25, M14x1.25 and all others with this pitch parameter. The tool cuts a full 60-degree thread profile including the vertices and outer diameter alignment eliminating the need for additional finishing operations. The VK2P carbide grade is characterized by high wear resistance and stability of the cutting process when threading steel parts on a conventional and CNC lathe.
Key advantages of the 16 ER 1.25 mm insert
- Full ISO profile for 1.25 mm pitch - cuts complete M8, M10x1.25, M12x1.25, M14x1.25 threads with finished coil tips without requiring additional deburring
- Cutting along with diameter alignment - dedicated insert cuts 60-degree thread sides, creates coil tips and aligns nominal diameter at the same time
- Highly durable VK2P carbide - grade provides wear resistance and cutting edge stability when machining steel materials of varying hardnesses
- Versatility of toolholder installation - compatible with right-hand external cutters 16 ER and left-hand internal boring bars 16 IR when changing toolholders
- Compatibility with metric standard - full-profile ISO design guarantees interchangeability with Class 6H nuts and dimensional accuracy in production
This tool is used in machine shops and manufacturing workshops making M8 standard and fine threads with a pitch of 1.25 mm. The insert works well in machining fasteners, machine parts and in mass production where repeatability of the process is required. The VK2P carbide grade ensures long tool life and dimensional stability in long production runs. Ideal for workshops using CNC and conventional lathes where performance and quality of metric threads matter.
Cutting parameters for right-hand external insert 16 ER pitch 1.25 mm
| ISO Symbol | Material | Cutting speed Vc [m/min] |
|---|---|---|
| P | Steel | 50-180 |
| M | Stainless steel | 50-90 |
| K | Cast iron | 65-120 |
| N | Aluminum and non-ferrous materials | 90-180 |
Number of recommended passes depending on thread pitch
| Pitch mm [TPI zwoje] | 1,25 |
|---|---|
| Number of passes | 6-10 |
Frequently asked questions
1. Which toolholders does the 16 ER 1.25 mm insert work with?
The tool fits external right-hand tool holders equipped with the 16 ER type socket of the SER series. In addition, the same insert can be used in internal left-hand boring machines with a 16 IR socket of the SIR series, so it supports both shaft and hole threading with an identical pitch of 1.25 mm with a single cutting tool.
2. For which threads is the 1.25mm insert designed?
The insert performs M8 basic threads with a pitch of 1.25 mm, as well as fine threads like M10x1.25, M12x1.25, M14x1.25 and any other metric thread that maintains this pitch parameter. A complete ISO-compliant profile cuts a finished thread with shaped tips and an aligned diameter that meets international standards for threaded connections.
3. What is the cutting depth of a thread with a pitch of 1.25 mm?
H1 - Height of the thread outline given in [mm] || P - pitch of the thread given in [mm]
H1 [mm] = 0.6134 × P
For a thread with a pitch of 1.25 mm: H1 = 0.6134 × 1.25 = 0.77 mm
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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