16/32/63/125/250/500 µm Surface Comparison Plates Set Horizontal Milling Ra Values 500–0.4 µm - Metav IndustryLine

Combine precise reference grades with portable handling for fast, repeatable surface assessments in horizontal milling. The set covers Ra equivalents from 0.4 to 12.5 µm and streamlines quality checks — order directly via Metav Werkzeuge or consult our specialists if required.

Surface comparison plates "Horizontal Milling" — reference textures for milling inspections (Metav IndustryLine)

The Surface comparison plates "Horizontal Milling" provide a practical set of reference textures for quick evaluation of milled surface quality in production and inspection environments

• Six reference grades covering common Ra ranges
• Suitable for horizontal milling surface checks
• Compact, lightweight set for portable inspection
• Clear Ra equivalents from 0.4 to 12.5 µm

Faster, comparable surface assessment on the shop floor

A set of reference plates simplifies go/no‑go decisions by giving a direct visual and tactile baseline against which milled finishes can be judged. The plates map AA grades to their Ra equivalents (from 0.4 µm up to 12.5 µm), so measurements and subjective assessments are easier to reconcile. This reduces interpretation time during quality checks and helps to avoid unnecessary rework by standardising the language of surface finish across operators and shifts.

Reliable reference values that support traceable QC

Each comparison surface represents an established finish grade used in machining and finishing specifications. By comparing a component to a fixed reference, the likelihood of inconsistent acceptance is lowered and routine inspections become more objective. The clear Ra markings allow quick cross‑checks with profilometer readings and drawing tolerances, improving process control and accelerating decision cycles in batch production.

Practical integration into production and inspection routines

Lightweight and easy to handle, the plates are intended for repetitive checks at the machine, in the inspection room or at the assembly bench. The set covers a broad range of typical milling finishes, so one comparator package replaces the need for multiple individual references. Used alongside a tactile inspection or a surface roughness meter, the plates provide an immediate comparative assessment that complements numerical measurement and supports consistent workmanship.

Contact Metav Werkzeuge in Emmerich for tailored advice and ordering of Metav IndustryLine surface comparison plates; our team is available to advise on selection and integration into inspection routines

Technical Data

• Article number: M318.036.2
• GTIN: 4054469146287
• Tariff number: 90173000
• Manufacturer: Metav IndustryLine
• Weight: 0.2 kg
• Pieces per set: 6

Core specifications

• Ra (µm): 12.5 / 6.3 / 3.2 / 1.6 / 0.8 / 0.4
• AA grades: 500 / 250 / 125 / 63 / 32 / 16

Design and features

• Suitable for horizontal milling surface comparison
• Set of reference plates for visual and tactile assessment
• Portable, lightweight design for shop‑floor use

FAQ

How are the surface grades expressed and used?
The plates present standard AA grades alongside their Ra equivalents in micrometres; the Surface comparison plates "Horizontal Milling" allow quick alignment between visual/tactile checks and instrument readings.

Can these plates be used directly at the machine for quick checks?
Yes — the comparator set is designed for shop‑floor use, offering a compact and lightweight reference that supports rapid visual and tactile inspection of milled surfaces.

Do the plates replace measured roughness values from a profilometer?
The comparator set provides an immediate comparative baseline; it complements, rather than replaces, profilometer measurements by enabling fast go/no‑go decisions and better interpretation of numerical results.

Which machining processes are these plates intended for?
The plates are intended primarily for horizontal milling finishes and similar machined surfaces where comparable Ra ranges occur; they assist in standardising surface assessment across production and inspection.

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