18 mm Parallel Stop 80×120 mm, Pair Delivery, Hardened Ground Special Steel - Metav IndustryLine

Take advantage of a hardened, ground construction with tight height tolerance IT5 and paired delivery for consistent, repeatable set‑ups; order or request advice directly via Metav Werkzeuge for application support from the Emmerich hub.

Parallel stop M318.246.3 — precision parallel stop 18 × 80 × 120 mm (hardened special steel)

A Parallel stop M318.246.3 designed to position and support workpieces in 18 mm machine grooves with H8 tolerance for workshop, toolroom and fixture applications

• Delivered in pairs for consistent set‑up
• Hardened, ground special steel
• Precision height tolerance IT5 (0 / ‑0.02 mm)
• Fits 18 mm machine grooves with H8 tolerance

Repeatable alignment that reduces setup time

The compact geometry and matched pair delivery create a reliable datum for repetitive machining and inspection tasks. By combining a ground profile with a defined height tolerance IT5, the stop delivers consistent reference faces that reduce repositioning error and shorten cycle times. This controlled interface supports faster fixture changes and more predictable clamping behaviour, translating directly into higher throughput and fewer rejected parts.

Stability and wear resistance for demanding use

Manufactured from hardened, ground special steel, the component resists surface deformation and abrasion during repeated clamping and contact operations. The mass and profile stiffness minimise deflection under load, preserving the flatness and parallelism required for precise work. This durability lowers the need for frequent replacement and contributes to a stable production process where tool and workpiece interaction remain predictable over extended runs.

Compatibility with standard machine grooves for easy integration

Engineered for 18 mm machine grooves with tolerance H8, the unit mates precisely with common slot dimensions used in fixtures and machine tables. H8 indicates a standardised slot fit, ensuring mechanical compatibility with many machine tool setups and reducing the necessity for bespoke adapters. The result is straightforward integration into existing tooling kits, whether for small batch production or regular fixture setups in a busy workshop.

Measurable accuracy that supports quality control

The nominal tolerance of 0 / ‑0.02 mm in height (IT5) provides a verifiable reference quality for inspection routines and jig assembly. When paired, both blocks present matching reference planes that assist in consistent dimensional checks and alignment tasks. Traceable dimensions and robust manufacturing allow these parallels to be used as a stable basis for setting up vises, aligning components and conducting comparative measurements on the shopfloor.

Contact Metav Werkzeuge for application matching and delivery from our Emmerich facility—Metav IndustryLine specialists can advise on pairing, tolerance checks and integration into existing fixtures.

Technical data

• Article number: M318.246.3
• GTIN: 4054469128474
• Manufacturer: Metav IndustryLine
• Category: Parallelunterlagen
• Delivery: delivered in pairs

Facts

• Height: 80 ±0.0065 mm
• Length: 120 mm
• Thickness: 18 mm
• Weight: 2.7 kg
• Nominal tolerance: 0 / -0.02 mm (height IT5)
• Tariff number: 84662020

Special features

• Material: special steel, ground and hardened
• Suited for machine grooves with H8 tolerance
• Ground finish for reference faces
• Supplied as a matched pair for repeatability

FAQ

Which groove width does this parallel stop require?
The unit is made for an 18 mm groove width and is designed to engage machine grooves with H8 tolerance, ensuring a standardised fit for common fixture slots.

What level of accuracy can be expected for the height?
Height accuracy is specified as 0 / ‑0.02 mm with a tolerance class of IT5, giving a reproducible reference surface suitable for workshop inspection and setup tasks.

What material and surface treatment are used?
The stops are manufactured from special steel, ground and hardened, providing wear resistance and a stable contact surface under repeated loading.

Are the parallels supplied individually or as a set?
These parallels are delivered in pairs to ensure matched reference faces and to simplify alignment and clamping operations in jig and fixture use.

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