M4x0.7mm Machine Tap DIN 371C AL HSS-Co Form C 6H Right-Hand Scored Flanks, 4.5mm Shank - TECWERK

Take advantage of the combination of robust HSS‑Co construction, a 45° right‑hand spiral for reliable chip evacuation, and a design optimised for blind holes to secure consistent metric threads with minimal rework; order the machine tap directly via Metav Werkzeuge or contact the consultants for application advice.

Machine tap DIN 371C AL M4×0.7 HSS‑Co (TECWERK)

The machine tap DIN 371C AL M4×0.7 HSS‑Co is a right‑hand spiral machine tap designed for producing metric M4 blind threads in long‑chipping, soft materials.

• HSS‑Co construction for higher heat resistance
• Right‑hand 45° spiral for efficient chip evacuation
• Form C, type AL designed for blind holes
• ISO metric thread M4×0.7, tolerance field 6H

Consistent metric threads with high‑alloy cutting steel

The combination of HSS‑Co material and the tool geometry delivers a balance of toughness and wear resistance that is especially useful where elevated cutting temperatures or extended cycle times occur. The tool is specified for M4×0.7 metric threads and adheres to DIN 13 Blatt 1, which means the produced threads meet established industrial dimensions. The cobalt alloy increases hot hardness, helping to maintain cutting edge integrity during repetitive production runs and reducing the frequency of tool changes.

Cleaner blind holes and fewer interruptions in production

The 45° spiral with right‑hand helix is engineered to evacuate chips axially from blind holes, minimising the risk of chip packing that typically causes thread damage or tap breakage. The tap’s Form C / Type AL geometry and ground flank relief improve cutting action in long‑chipping, softer materials, so fewer interrupted cycles and less manual rework are required. This focused design reduces scrap rates and supports a steadier manufacturing throughput.

Measurable fit and secure clamping for repeatable results

Tolerance specification ISO2 (6H) indicates a machine‑grade internal thread with a reproducible fit for mating bolts and screws; this provides predictable assembly behaviour and reduces downstream fitting issues. The tool’s Shank Ø 4.5 mm allows secure clamping in standard machine holders used for tapping operations, contributing to consistent concentricity and thread quality across batches. These measurable properties translate directly into lower inspection effort and greater process reliability.

Suitable for workshop and small‑series production environments

Conforming to DIN 371C standards and optimised for blind‑hole tapping, the tap is appropriate for maintenance, repair and light production tasks where metric thread conformity and tool life are priorities. The design focuses on practical benefits: reliable chip control, durable cutting edges, and defined tolerance classes for assured component interchangeability. For operations that require steady output and predictable assembly fit, this tool supports efficient workflows.

Choose TECWERK machine taps through Metav Werkzeuge for dependable thread production and application guidance—Metav Werkzeuge supplies precision tools from its Emmerich quality hub and can advise on suitability; contact info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000867294NW
• Manufacturer: TECWERK
• Label: Machine tap DIN 371C AL M4×0.7 HSS‑Co
• Packaging unit: 1
• UID: 2000867294NW

Core data

• Thread size: M4×0.7
• Shank Ø: 4.5 mm
• Spiral helix: 45° right‑hand
• Tolerance field: ISO2 (6H)

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Form: C, Type AL
• For blind holes (Sacklochgewinde)
• Flank relief ground
• Standard: DIN 13 Blatt 1
• Intended for long‑chipping, soft materials

FAQ

What materials is this tap best suited for?
The TECWERK machine tap DIN 371C M4×0.7 HSS‑Co is designed primarily for long‑chipping, soft materials; the geometry and spiral helix assist chip evacuation and reduce clogging in these materials.

Can this tap be used for blind holes only?
The tool is optimised for blind‑hole threading (Sacklochgewinde) thanks to its 45° right‑hand spiral and Form C AL design, which promote axial chip removal in closed‑end holes.

What does the tolerance field 6H mean for the finished thread?
A 6H tolerance (ISO2) denotes a standard internal thread tolerance that gives a reliable fit with corresponding external threads; the specification ensures predictable assembly behaviour with the TECWERK tap.

Is the shank diameter compatible with standard holders?
The tap features a shank Ø of 4.5 mm, which provides a firm clamping diameter for secure mounting in many machine tap holders used in production and workshop tapping operations.

Which standard does the tap comply with?
The tool conforms to DIN 13 Blatt 1 and follows the DIN 371C form specification, ensuring threads are produced to recognised metric standards with the TECWERK machine tap SKU 2000867294NW.

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