M20x2.5mm Threading Die Form B Left-Hand HSS 6g Tolerance, 18mm Height - TECWERK

Benefit from robust HSS construction, precise M20×2.5 mm metric threading and a left-hand cutting design that supports reliable reverse-thread production; order directly via Metav Werkzeuge or consult the advisors for technical guidance.

Round die M20×2.5 mm (Form B) – HSS left-hand cutting | TECWERK

The Round die M20×2.5 mm (Form B, left-hand) is a closed, pre-slotted HSS die designed for cutting metric ISO threads to DIN 13 in medium-strength steels.

• HSS construction for long service life
• Metric ISO thread to DIN 13 compliance
• Tolerance class 6g for precise fits
• Left-hand cutting for reverse-thread jobs

Accurate metric threading for repeatable results

The tool enables consistent production of M20×2.5 mm metric ISO threads to DIN 13 with a 6g tolerance class, ensuring interchangeability and tight fits in assemblies. By specifying a defined tolerance band, the die reduces the need for secondary finishing and supports predictable assembly behaviour. This makes it suitable for workshop rework and small-batch production where dimensional conformity is essential and process reliability reduces rework time.

Durable high-speed steel body for workshop demands

Manufactured from HSS, the die combines wear resistance with toughness to withstand repeated engagement in metallic materials. The material selection supports threads in steels up to approximately 800 N/mm² tensile strength without rapid edge degradation. As a consequence, tool life is extended under standard cutting conditions, lowering consumable turnover and supporting sustained productivity in maintenance and production environments.

Design features that simplify cutting and alignment

Constructed in Form B with a closed, pre-slotted profile and a height of 18 mm, the die maintains concentricity during cutting while the pre-slots offer chip accommodation and smoother chip flow compared with fully closed, unslotted types. The left-hand cutting orientation allows the production of reverse threads or repairs on components with counter-rotating requirements. These design choices minimise cross-threading and improve start-up behaviour when paired with an appropriate holder.

Suitable applications and handling recommendations

Ideal for workshop repair, component manufacture and toolroom use, the die is intended for machining metric threads in medium-strength steels where a 6g tolerance is required. The component performs well in single-pass threading and re-threading tasks; when consistent surface finish and accurate pitch are priorities, the HSS geometry balances cutting performance with edge retention. For optimal results, the die is best used with a correctly sized die holder and appropriate cutting lubricant to manage chip evacuation and reduce induced stresses.

For reliable left-hand metric threading with TECWERK HSS quality, contact Metav Werkzeuge in Emmerich for ordering or technical advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000867451NW
• SKU: 2000867451NW
• Manufacturer: TECWERK

Facts

• Thread size: M20×2.5 mm
• Tolerance: 6g
• Height: 18 mm
• Material tensile strength suitability: up to approx. 800 N/mm²

Special features

• Material: HSS
• Form: B
• Left-hand cutting
• Closed, pre-slotted form
• Metric ISO thread to DIN 13
• Packaging unit: 1

FAQ

What thread standard does this die produce?
The die produces metric ISO threads in accordance with DIN 13, specified here as M20×2.5 mm with a 6g tolerance.

Is the tool suitable for hardened steel components?
The TECWERK HSS die is intended for steels up to approximately 800 N/mm² tensile strength; it is not specified for high-hardened alloys beyond that range.

What does the pre-slotted closed form provide?
The closed, pre-slotted design maintains concentricity while offering chip space to improve cutting behaviour and reduce the risk of jamming during threading.

Can this die cut left-hand threads only?
This is a left-hand cutting die designed specifically for reverse-thread applications and repair of left-hand threaded parts.

What tolerance can be expected from the finished thread?
The finished thread conforms to tolerance class 6g, delivering a precise fit suitable for standard mechanical assemblies.

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