# Measuring tool INSIZE SREDNICOWKA 3-point analog 16–20 mm

**URL:** https://aio.lv/en/product--insize-3227-20--11776706
**Data updated:** 2026-03-08 22:46 (EET)
**Category:** Measuring tools
**Manufacturer:** INSIZE
**Manufacturer code:** 3227-20
**EAN:** 6928640309113
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 225.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 186.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--insize-3227-20--11776706

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

INSIZE SREDNICOWKA is a 3-point analog measuring instrument for external diameter measurement in the 16–20 mm range. The device uses three contact points to center on cylindrical workpieces, providing stable readings on the analog dial. Suitable for workshop and quality-control checks of shafts, pins and small round parts where quick manual diameter verification is required.

## Long description

INSIZE SREDNICOWKA 3-point analog 16–20 mm is a compact mechanical measuring tool designed for rapid external diameter checks of small cylindrical parts. The instrument employs three equally spaced contact points that automatically center on shafts, pins and round workpieces within the 16–20 mm range and transfer the result to an analog dial for immediate reading. Built for workshop and quality-control use, this 3-point caliper offers a simple, purely mechanical solution when quick manual verification of diameter is required without digital electronics.
Advantages
The three-point centering system ensures stable contact with cylindrical surfaces and reduces eccentricity errors compared with two-point measures. The analog dial provides continuous, readable movement that is easy to interpret for routine checks. Its compact size and mechanical operation make the instrument robust, battery-free and suitable for use in environments where simple, reliable dimensional checks are preferred. The device is appropriate for repeated spot checks and basic quality control workflows.
Suitable for
 Measuring external diameters of shafts, pins and small round parts (16–20 mm)
 Quick manual inspection on the workshop floor
 Incoming goods control and simple quality-assurance tasks
 Use in assembly stations for pass/fail diameter verification
Key specifications
 Measurement range: 16–20 mm
 Measuring principle: three-point contact, mechanical centering
 Display type: analog dial indicator
 Contact points: three fixed probes for external diameter measurement
 Construction: compact, mechanical body designed for workshop use
How to use
Place the instrument around the cylindrical part so the three contact points touch the surface. Gently close the contacts until the probes are seated evenly around the circumference and the dial has stabilized. Read the diameter value from the analog dial; if required, repeat the measurement at different axial positions to confirm consistency. Keep hands steady during reading to avoid parallax errors and ensure reliable manual verification.
Usage recommendations
Before each measuring session, check that contact points are clean and free of burrs or debris; ensure the dial returns to zero when fully opened. For improved repeatability, measure at several circumferential positions and average results if necessary. Store the instrument in a protective case when not in use to preserve alignment and prevent damage to the contact points.

## FAQ

### How much does the INSIZE SREDNICOWKA 3-point analog 16–20 mm cost, and is it available for purchase?

The price is 225.99 € (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 06.07.2026 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 SREDNICOWKA 3-point analog 16–20 mm 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/11776706/67167148_large.webp