YELLOW RING Machine Tap DIN 376 Form C 40° Spiral Flute HSSE - M 20 x 2.5
€96.00
YELLOW RING Machine Tap M 20 x 2.5 HSS-E (Form C/40° RSP) – Your Specialist for Aluminum and Long-Chipping Materials
Are you working in machining, mechanical engineering, or the automotive industry and looking for a high-precision machine tap specifically designed for blind holes in aluminum and other long-chipping materials? The YELLOW RING Machine Tap M 20 x 2.5 made of high-quality HSSE (High-Performance High-Speed Steel with Cobalt) is your reliable partner for efficient and process-reliable thread production.
What is this Machine Tap and Why Do You Need It?
This tap is a DIN 376 machine tap with a special Form C and a 40° RSP (Right Spiral). It's designed to cut metric ISO threads of size M 20 x 2.5 in a single pass. Unlike hand taps, which are often used in sets, this tap is optimized for machine use, enabling fast and precise thread production.
Who is this Specialist For?
This YELLOW RING machine tap is ideal for you if you:
- Regularly machine blind holes in aluminum or aluminum alloys, where efficient chip evacuation is crucial.
- Also need to machine other long-chipping materials such as certain plastics or long-chipping steels.
- Work in series production and value high process reliability and tool life.
- Are looking for a reliable solution for metric threads M 20 x 2.5 that requires the highest precision (tolerance ISO 2 / 6H).
What Problem Does This Tap Solve for You?
Tapping threads in long-chipping materials, especially in blind holes, poses a significant challenge. Long chips can get entangled, clog the tap, and in the worst case, lead to tool breakage or thread damage.
The YELLOW RING machine tap solves this problem through its special geometry (Form C / 40° RSP) and its 2 flutes:
- Form C (Chamfer lead): The chamfer lead ensures a pulling cut that optimizes chip formation and allows for easy cutting.
- 40° RSP (Right Spiral): The helix angle of the flutes actively carries the chips upwards out of the blind hole, preventing chip clogging.
- 2 Flutes: A reduced number of flutes creates larger chip chambers. This is particularly advantageous for long-chipping materials, as there is more space for the resulting chips, meaning efficient evacuation and a lower risk of clogging. This significantly increases process reliability.
With this tap, you minimize the risk of scrap and tool breakage, save time, and achieve perfectly formed threads every time.
Why Should You Choose This YELLOW RING Machine Tap?
This YELLOW RING tap stands out due to specific features that provide you with direct advantages in your daily work:
- Optimized for Aluminum and Long-Chipping Materials: The combination of Form C (chamfer lead) and the 40° RSP (Right Spiral) is ideal for soft, long-chipping materials. The chamfer lead ensures a clean cut, and the strong helix angle of the flutes effectively evacuates chips from the drilled hole.
- HSS-E Material – Highest Heat Resistance and Toughness: Made from HSSE (High-Speed Steel with Cobalt), this tap offers significantly improved wear resistance and hot hardness compared to conventional HSS. This means for you: Longer tool life, even at higher cutting speeds and temperatures, as well as increased fracture resistance. You benefit from fewer tool changes and reliable production.
- Perfect for Blind Holes: The special geometry with the right spiral is predestined for blind holes. Chips are controlledly evacuated upwards, drastically reducing the risk of chip accumulation and associated tool breakage in tight drilled holes.
- High Precision according to DIN 376: The nominal size M 20 x 2.5 and the tolerance ISO 2 / 6H ensure precise thread production according to common industry standards. Tolerance 6H is a standard tolerance for metric threads with normal fit. Compliance with the DIN 376 standard stands for quality and reliability.
- Robust All-Steel Construction: The total length of 140 mm and the shank diameter of 16 mm with a 12 mm square drive are designed for stability and secure tool clamping in the machine.
- Upper Price Level – An Investment That Pays Off: Although this tap is in the upper price segment, this is reflected in its outstanding quality, durability, and process reliability. The longer tool life and reduction in scrap quickly make the investment profitable. You are buying a tool that consistently delivers high performance and increases the efficiency of your production.
Technical Details at a Glance
- Thread Type: Metric ISO Thread DIN 13
- Standard: DIN 376
- Form: Form C / 40° RSP (Right Spiral)
- Material: HSSE (High-Performance High-Speed Steel with Cobalt)
- Tolerance: ISO 2 / 6H
- Nominal Size: M 20 x 2.5
- Number of Flutes: 2-flute
- Application: For blind holes, aluminum, long-chipping materials up to 800 N/mm², unalloyed and low-alloy steels
- Overall Length (L1): 140 mm
- Thread Length (L2): 25 mm
- Shank Diameter (D2): 16 mm
- Drive Type: Square 12 mm
- Article Number: 36566
Frequently Asked Questions (FAQ)
For a metric ISO thread M 20 x 2.5, a core hole diameter of 17.5 mm is recommended. A precise core hole drilling is crucial for the quality of the thread and the tool life of the tap.
2. Can I also use this tap for through holes?
Although this tap is primarily optimized for blind holes, it can technically also be used for through holes. However, the right spiral would then also carry the chips upwards out of the hole instead of letting them fall through the hole, which is sometimes less ideal for pure through holes. For through holes, taps with straight flutes or a different chamfer lead are often more suitable.
3. What is the difference between HSS and HSSE?
HSS (High-Speed Steel) is a standard high-speed steel. HSSE (High-Speed Steel with Cobalt) is an improved version that additionally contains cobalt. The cobalt increases the hot hardness and wear resistance of the tool, allowing HSSE taps to achieve higher cutting speeds and longer tool lives, especially with more demanding materials or higher temperatures.
4. What cutting speed and coolant should I use?
The optimal cutting speed depends heavily on the material to be machined and the stability of the machine. For aluminum, higher cutting speeds are generally possible. A high-quality cutting oil or a cooling lubricant emulsion is essential to reduce friction and heat, improve chip evacuation, and maximize the tool life of the tap. A rule of thumb for aluminum is a cutting speed of approx. 20-35 m/min. However, always consult the material manufacturer's or your machine manufacturer's recommendations for precise values.
Invest in the YELLOW RING Machine Tap M 20 x 2.5 HSS-E and experience precise, efficient, and process-reliable thread production in aluminum and long-chipping materials!
| Type of thread | metrisches ISO-Gewinde DIN 13 |
|---|---|
| Standard | DIN 376 |
| Form | Form C / 40° RSP |
| Material | HSS-E |
| Tolerance | ISO 2 /6H |
| Size | M 20 x 2.5 |
| Overall length (L1) | 140 mm |
| Thread length (L2) | 25 mm |
| Shank diameter (D2) | 16 mm |
| Drive connector | Vierkant 12 mm |
| Item number | 36566 |
