18 x 80 x 160 mm Parallel Stop For 18 mm T-Slot, Hardened Ground Special Steel, Supplied In Pairs - Metav IndustryLine

Take advantage of the combination of precision-ground, hardened construction and a defined height tolerance (IT5) for consistently reproducible fixturing; order the pair directly via Metav Werkzeuge or consult our specialists for integration advice.

Parallel stop, 18 × 80 × 160 mm — hardened, ground special steel (Metav IndustryLine)

A Parallel stop, 18 × 80 × 160 mm designed for precise positioning in machine T-slots and fixture set-ups, providing a stable reference for repeatable machining operations.

• Hardened, ground special steel construction
• Precision height tolerance IT5, 80±0.0065 mm
• Suited for machine T-slots with H8 tolerance
• Delivered as paired set for direct use

Stable, hardened construction that reduces setup variation

The robust body is made from special steel that has been ground and hardened, producing a wear-resistant reference surface that resists deformation during clamping and machining. With the compact footprint of 18×80×160 mm, the block mass contributes to stable seating in the slot and helps to damp vibration, which in turn reduces microscopic movement during cuts. This stability shortens set-up time and increases the repeatability of multiple workpieces, so clamping routines become faster without sacrificing alignment quality.

Accurate fit for T-slots enhances repeatability

Manufactured to a defined nominal tolerance of 0/‑0.02 mm and a height class of IT5, the stop is intended for installations where play must be minimised. Compatibility with machine T-slots that meet H8 tolerance ensures a snug, predictable engagement that prevents lateral movement under load. The specified height of 80±0.0065 mm is controlled to support consistent datum creation across fixtures, which makes the block particularly useful where interchangeability between setups or machines is required and where measurement-based quality control is enforced.

Paired delivery and workshop benefits for efficient workflows

Supplied pairwise, the set allows immediate use as opposing references for vices, fixture jaws or inspection set-ups, eliminating the need to assemble matched blocks on-site. The total mass and surface finish mean fewer adjustment cycles and less reliance on shims or repeated alignment checks. Durability is enhanced by the hardened surfaces; routine care is limited to cleaning and light protection against corrosion, which keeps maintenance straightforward and operating costs low. The product’s design supports quick integration into existing clamping systems and reduces the number of alternative components required for consistent fixturing.

For integration advice or to arrange a supply of the Metav IndustryLine parallel stops, contact Metav Werkzeuge — our consultants will advise on fitment, compatibility and delivery options

Technical data

• Article number: M318.246.4
• GTIN: 4054469128481
• Category: Parallel blocks

Facts

• Dimensions (thickness × height × length): 18 × 80±0.0065 × 160 mm
• Nominal tolerance: 0/‑0.02 mm (height)
• Height tolerance class: IT5
• Weight: 3.7 kg
• Customs tariff number: 84662020

Special features

• Material: special steel, ground and hardened
• Delivery: paired set
• Suitable for machine T-slots with H8 tolerance

FAQ

Can these parallel stops be used in standard T-slots?
Yes. The Metav IndustryLine parallel stop M318.246.4 is specified for machine T-slots with H8 tolerance and provides a close fit for standard slot geometries.

What materials and surface treatment are used?
The blocks are manufactured from special steel that is ground and hardened, delivering wear resistance and stable reference faces for clamping and inspection.

What tolerances can be expected from the product?
Height tolerance is 80±0.0065 mm with a nominal tolerance of 0/‑0.02 mm and an overall classification to IT5, ensuring consistent datum formation across assemblies.

Why are the items delivered in pairs?
Paired delivery supplies a matched set ready for opposing references in vices or fixtures, reducing setup time and the need for additional matching operations.

How should the stops be maintained to preserve accuracy?
Keep the faces clean and free from chips or coolant residues; a light film of corrosion inhibitor after cleaning will protect the hardened surfaces and preserve the reference accuracy.

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