- Stock: Sold Out
- Cat No: MAY4671018 11704
- SKU: MAY4671018
- UPC: 9002741252534
Don't snooze, this offer ends in:
Maykestag Speedtap Universal HSSE-V3 Machine Tap M18 Spiral Fluted DIN 376
Professional M18 x 2.5 Speedtap Universal machine tap manufactured from HSSE-V3, featuring 40° spiral-fluted geometry, a Form C chamfer and ISO2 (6H) thread tolerance for accurate metric ISO threading in blind holes.
The Maykestag Code 4671 Speedtap Universal is a spiral-fluted machine tap designed for producing metric ISO threads according to DIN 13. This M18 version has a 2.5mm thread pitch and is manufactured to DIN 376, combining a 40° spiral angle with a short Form C chamfer of 2–3 pitches. Its geometry is specifically designed for blind-hole threading, where effective chip evacuation is essential for reliable machining and consistent thread quality.
What is a spiral-fluted machine tap?
A spiral-fluted machine tap has helical flutes running around the cutting section of the tool. During blind-hole tapping, the spiral geometry helps guide chips back towards the entrance of the hole rather than pushing them deeper into the workpiece. The Code 4671 uses a pronounced 40° spiral angle together with Form C chamfer geometry for controlled and efficient machine tapping.
Product highlights
- Speedtap Universal series: Maykestag high-performance machine tapping range designed for dependable production threading.
- M18 x 2.5 metric thread: Produces M18 metric ISO threads with a 2.5mm pitch.
- DIN 376: Manufactured according to the specified DIN standard for this machine-tap series.
- HSSE-V3 cutting material: High-performance high-speed steel grade specified by Maykestag for the Code 4671 range.
- 40° spiral flutes: Designed to promote chip evacuation back towards the hole entrance during blind-hole tapping.
- Blind-hole geometry: Specifically designated by Maykestag for blind-hole threading applications.
- Form C chamfer: Short 2–3 pitch chamfer suited to controlled thread production in blind holes.
- ISO2 (6H) tolerance: Designed to produce metric ISO internal threads to the commonly used 6H tolerance class.
- Four-flute design: The M18 tap is manufactured with four cutting flutes.
- Recommended tap drill: Maykestag specifies a Ø15.5mm pre-drill diameter for this M18 x 2.5 tap.
Why Choose Maykestag?
Maykestag is an Austrian cutting-tool specialist focused on precision-manufactured drilling, milling, reaming and threading tools for professional machining. Accurate geometry, dimensional consistency and carefully selected cutting materials are especially important in machine tapping, where reliable chip control and consistent thread quality directly influence productivity and tool life.
The Code 4671 Speedtap Universal series combines HSSE-V3 cutting material, 40° spiral-fluted geometry and a Form C chamfer with precisely defined metric ISO thread tolerances. For this M18 version, Maykestag specifies a 2.5mm pitch, four flutes and a Ø15.5mm recommended tap-drill diameter.
Designed for Blind-Hole Machine Tapping
Blind-hole tapping requires effective chip management because there is no opening beneath the thread through which chips can escape. The 40° spiral-fluted geometry of the Speedtap Universal is designed to transport chips back towards the entry side of the hole during machining. Combined with the short Form C chamfer and ISO2 (6H) thread tolerance, the Code 4671 provides a purpose-designed solution for accurate machine production of metric ISO internal threads.
Features
- M18 x 2.5 metric ISO machine tap
- Speedtap Universal spiral-fluted design
- Manufactured from HSSE-V3 cutting material
- DIN 376 machine-tap standard
- Metric ISO thread according to DIN 13
- 40° spiral angle
- Form C chamfer with 2–3 pitch lead
- ISO2 (6H) thread tolerance
- Designed for blind-hole applications
- Four cutting flutes
- Recommended Ø15.5mm tap-drill diameter
- Thread-depth guidance of ≤2.5 x d1
Recommended Applications
The Maykestag Code 4671 range is rated by Maykestag according to its suitability for different material groups. For this Universal series, Maykestag gives its highest suitability rating for steels below 400 N/mm² and steels below 850 N/mm².
Green ring classification
The green Maykestag classification identifies the Universal tool family. These tools are designed as versatile professional cutting tools for commonly encountered machining applications rather than being dedicated to one specialised material group. For Code 4671, Maykestag specifically rates the tap as ideal for steels below 400 N/mm² and steels below 850 N/mm².
Why use spiral flutes for blind holes?
In a blind hole there is no exit beneath the thread for chips to escape. The Speedtap Universal&s 40° spiral-fluted geometry is designed to guide chips back towards the hole entrance during machining, helping reduce chip accumulation at the bottom of the hole and supporting controlled thread production.
Get the Right Cutting Data SpeedGuide Calculator
MaySpeedGuide: Maykestag recommends using the MaySpeedGuide to determine the appropriate cutting speed and machining conditions for the tap, workpiece material and application.
Specifications
| Description | Spec |
|---|---|
| Brand: | Maykestag |
| Product Description: | Speedtap Universal Machine Tap M18 |
| Cat No.: | MAY4671018 |
| Manufacturer Code: | 0467101800100 |
| Series Code: | 4671 |
| Product Type: | Spiral-Fluted Machine Tap |
| Standard: | DIN 376 |
| Thread Standard: | Metric ISO Thread DIN 13 |
| Thread Type: | M - Metric |
| Thread Size (d1): | M18 |
| Thread Pitch (P): | 2.50 mm |
| Thread Tolerance: | ISO2 (6H) |
| Hole Type: | Blind Hole |
| Chamfer: | Form C (2–3P) |
| Tool Material: | HSSE-V3 |
| Spiral Angle: | 40° |
| No. of Flutes (Z): | 4 |
| Overall Length (l1): | 125 mm |
| Thread Length (l2): | 25 mm |
| Shank Diameter (d2): | 14.00 mm |
| Shank Diameter Tolerance: | h9 |
| Square Size (a): | 11.00 mm |
| Square Size Tolerance: | h12 |
| Recommended Tap Drill Diameter: | Ø15.5 mm |
| Thread Depth: | ≤2.5 x d1 |
Scope of delivery
- 1 x Maykestag Speedtap Universal HSSE-V3 Machine Tap M18 Spiral Fluted DIN 376