# Caliper Standard Ring Gauge INSIZE PIERSCIEN WZORCOWY FI 50, Ø50 mm, MPN 6312-50

**URL:** https://aio.lv/en/product--insize-6312-50--11776714
**Data updated:** 2026-03-08 22:46 (EET)
**Category:** Measuring tools
**Manufacturer:** INSIZE
**Manufacturer code:** 6312-50
**EAN:** 6928640311307
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 89.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 74.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--insize-6312-50--11776714

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

INSIZE PIERSCIEN WZORCOWY FI 50 is a ring gauge (caliper standard) with nominal diameter Ø50 mm (MPN 6312-50, EAN 6928640311307). Designed for precision go/no-go checking and calibration of internal bore measuring tools, it provides a fixed reference diameter for inspection, setup and verification tasks in workshop and quality-control environments.

## Long description

INSIZE PIERSCIEN WZORCOWY FI 50 is a precision ring gauge with a nominal diameter of 50 mm designed for accurate go/no-go checking and calibration of internal bore measuring instruments. It offers a fixed reference diameter that helps maintain measurement consistency in workshop, inspection, and metrology environments. The ring gauge is produced to provide a stable, repeatable checking standard for bore gauges, internal micrometers and other internal measuring tools.
Advantages
The ring gauge delivers a stable reference diameter that supports rapid verification and setup of internal measurement tools. Its hardened and ground bore resists wear and preserves accuracy over repeated use. The compact, simple design requires no power and is easy to handle, enabling quick compatibility checks and on-the-spot inspection without complex fixturing.
Suitable for
Go/no-go checking of internal bore gauges and plug gauges
Calibration and verification of internal micrometers and telescoping gauges
Workshop quality control and production line spot checks
Assembly and inspection stations where a fixed reference diameter is required
Key specifications
Nominal diameter: 50 mm
Type: ring gauge (caliper standard) for internal measurement verification
Material and treatment: hardened and ground bore for wear resistance (material specifics per manufacturer)
Accuracy: manufactured to metrology-grade tolerances suitable for inspection and setup tasks
Form: circular ring with a fixed internal diameter for go/no-go checking
How to use
Clean both the ring gauge and the measuring instrument before use to remove debris and ensure contact integrity. Insert the internal measuring tool into the bore and check for go/no-go fit or compare instrument readings against the fixed diameter. Use gentle, consistent pressure and support the gauge on a stable surface to avoid deflection. Record results and, if needed, adjust the measuring instrument per its calibration procedure.
Usage recommendations
Store the ring gauge in a clean, dry environment and protect it from impacts. Periodically inspect the bore for wear or damage and recalibrate or replace the gauge if measurement drift is detected. Avoid exposing the gauge to corrosive substances or extreme temperatures to preserve accuracy.

## FAQ

### How much does the INSIZE PIERSCIEN WZORCOWY FI 50 ring gauge Ø50 cost, and is it available for purchase?

The price is 89.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can INSIZE PIERSCIEN WZORCOWY FI 50 ring gauge Ø50 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All INSIZE products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized INSIZE service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11776714/67167156_large.webp