18mm Threading Die Form B M18x2.5 Left-Hand HSS 6g Tolerance - TECWERK

Take advantage of a robust HSS construction combined with DIN-compliant accuracy and the stability of a closed, pre-slotted Form B design for reliable left-hand metric threading. Order the die directly via Metav Werkzeuge or consult our specialists for application-specific guidance.

TECWERK M18x2.5 Left-Hand Threading Die (Form B) HSS 6g

A TECWERK M18x2.5 Form B threading die designed to cut left-hand metric ISO threads for demanding steel applications.

• High-speed steel (HSS) cutting material
• Metric ISO M18 x 2.5, tolerance 6g
• Left-hand cutting for LH threads
• Closed pre-slotted Form B, 18 mm height

Accurate metric threads for production and maintenance

Manufactured to meet DIN EN 22568, this threading tool delivers consistent M18x2.5 threads with a 6g tolerance field, making it suitable where repeatable fit and interchangeability are required. The HSS cutting material provides a balance of hardness and toughness for machining operations in steel, reducing the need for frequent rework and improving throughput. By specifying a die that conforms to recognised standards, machinists and workshop planners benefit from predictable assembly performance and fewer rejects.

Stable cutting geometry with controlled chip flow

The closed, pre-slotted Form B configuration offers a full thread profile while the pre-slotted cuts assist chip evacuation during left-hand cutting. At 18 mm height the die maintains secure engagement in standard holders, supporting steady axial guidance and reduced chatter. This combination eases set-up and shortens cycle times in repetitive tasks, translating into measurable efficiency gains on production runs and repair jobs.

Suited to common steel grades and workshop workflows

Intended for use on steels up to approximately 800 N/mm², the tool covers a broad range of maintenance and fabrication needs without over-specification. The left-hand cutting geometry is ideal for reverse-thread applications or where conventional right-hand tools are unsuitable. The metric thread form to DIN 13 ensures compatibility with existing fasteners and components, simplifying inventory and reducing the number of special parts required in the workplace.

Dependable standard compliance for consistent results

The solid construction and conformity to industry norms make this die a dependable choice for both industrial and craft environments. The HSS material and standard-compliant geometry deliver predictable wear characteristics and straightforward replacement planning. For shops aiming to democratise precision—balancing cost, availability and quality—this threading die provides a pragmatic solution aligned with professional expectations.

For hands-on advice or to secure a supply of TECWERK left-hand threading dies, contact Metav Werkzeuge for tailored procurement support at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867450NW
• Designation: M18 x 2.5 left-hand threading die, Form B

Facts

• Thread size: M18 x 2.5
• Height: 18 mm
• Tolerance field: 6g
• Material strength capability: up to ca. 800 N/mm²

Special features

• Material: HSS
• Standard: DIN EN 22568
• Form: B
• Cutting direction: left-hand cutting
• Design: closed, pre-slotted
• Thread standard: metric ISO to DIN 13

FAQ

What thread does this die produce?
The TECWERK M18x2.5 Form B threading die cuts a metric ISO M18 x 2.5 left-hand thread (SKU 2000867450NW), suitable for components specified to this pitch and diameter.

Which materials is the die suitable for?
This HSS die is intended for machining steels up to approximately 800 N/mm²; it is optimised for common workshop steels where a robust cutting edge is required.

What does the closed, pre-slotted Form B mean in practice?
A closed, pre-slotted Form B die maintains the complete thread profile for accurate fit while the slots provide defined chip paths, improving chip control during left-hand threading.

What tolerance can be expected from this tool?
Threads produced with this die conform to the 6g tolerance field, offering a reliable fit for standard metric fasteners and components.

Is the die compatible with standard die holders?
The die is designed for standard mounting in common holders and supports metric ISO threads to DIN 13, facilitating integration into existing tooling setups.

Manufacturer / Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund