50 mm Hairline Ruler Blackened Tool Steel DIN 874/00 - Metav IndustryLine

Reliable construction and DIN‑compliant geometry combine to deliver precise scribing in tight spaces; the hardened, ground and lapped tool‑steel blade ensures repeatable results while the compact 50 mm format suits fine mechanical and watchmaking tasks. Order the hairline ruler directly via Metav Werkzeuge or ask our consultants for specification advice.

Hairline ruler M214.018 — 50 mm, fully hardened tool steel (DIN 874/00)

The Hairline ruler M214.018 is a compact sighting rule designed for precise scribing and alignment in fine mechanical and workshop applications, meeting the DIN 874/00 specification.

• Fully hardened tool steel, ground and lapped
• Complies with DIN 874/00 for hairline rules
• Compact 50 mm length for micro and fine work
• Blackened finish reduces glare and corrosion

Precise scribing where space is limited

Small assemblies and microcomponents demand tools that combine stability with fine geometry. The 50 mm blade, manufactured from fully hardened tool steel and finished by grinding and lapping, provides a consistently flat reference edge that resists wear. Compliance with DIN 874/00 assures a recognised manufacturing and inspection standard, enabling reliable interchangeability with existing measurement procedures. This construction reduces measurement scatter and supports repeatable scribing and alignment tasks in precision workshops.

Stability and handling for repeatable results

A ground and lapped surface minimises surface irregularities, while the blackened finish reduces reflective glare that can obscure a hairline. In the micro measuring range (max. 10–100 mm) the short blade length maintains torsional rigidity, making the instrument particularly suitable for watchmaking, fine mechanical work and inspection of small parts. The robust steel substrate ensures dimensional stability under normal workshop conditions, translating into fewer rechecks and faster setup times during routine tasks.

Low‑maintenance tool built for everyday use

The simple geometry and hardened substrate make the ruler inherently durable; routine care consists of keeping the surface clean and lightly oiled to protect the blackened finish. The compact format is easy to store in tool drawers or inspection kits, and the construction avoids fragile features that require special handling. For small teams seeking reliable reference tools, this sighting rule offers a pragmatic balance between longevity and the precision required for fine scribing operations.

Secure precise micro‑scribing with Metav IndustryLine’s hardened hairline ruler: contact Metav Werkzeuge in Emmerich for tailored advice, specification checks or to arrange supply via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M214.018
• GTIN: 4054469106069
• Standard: DIN 874/00

Facts

• Length: 50 mm
• Tariff code: 90178090

Special features

• Material: Tool steel, fully hardened, ground and lapped
• Finish: Blackened
• Category: Lineale
• Suitable range: Micro (max. 10–100 mm) for fine mechanical work

FAQ

What is the usable measuring length of this rule?
The usable blade length is 50 mm; the Hairline ruler M214.018 is therefore classified for micro‑range measurements suitable for fine mechanical tasks.

Which material and finish are used?
The hairline rule is made from fully hardened tool steel with a ground and lapped surface and a blackened finish to reduce glare and improve corrosion resistance.

Is the geometry standardised?
Yes, the product conforms to DIN 874/00, ensuring standardised hairline geometry for consistent scribing and alignment.

For which applications is this ruler ideal?
The compact format and stable construction make the Hairline ruler M214.018 ideal for watchmaking, precision assembly, small part inspection and other fine mechanical work.

How should the ruler be maintained?
Keep the blade clean and apply light oil to protect the blackened finish; avoid impacts or bending forces to maintain calibration and surface integrity.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com