# INSIZE digital 3-jaw inside micrometer 16–20 mm IP65 model 3127-20

**URL:** https://aio.lv/en/product--insize-3127-20--12365167
**Data updated:** 2026-04-26 18:53 (EEST)
**Category:** Measuring tools
**Manufacturer:** INSIZE
**Manufacturer code:** 3127-20
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 462.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 382.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--insize-3127-20--12365167

## 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

Digital 3-jaw inside micrometer from INSIZE, model 3127-20, measuring range 16–20 mm with IP65 protection. Designed for precise internal diameter measurement using a three-point contact system, it provides digital readout for fast, accurate readings in workshop and inspection environments. Suitable for bore gauging, quality control and assembly tasks.

## Long description

INSIZE digital 3-jaw inside micrometer 16–20 mm IP65 model 3127-20 is a precision measuring instrument designed to determine internal diameters with a three-point contact system and a digital readout. The 16–20 mm measuring range covers small bores and holes commonly found in mechanical parts, assemblies and quality-control inspections. IP65 protection ensures resistance to dust and low‑pressure water jets, making the tool suitable for workshop environments where contamination or coolant may be present.
Advantages
The three-jaw contact design provides stable centring and repeatable measurements across cylindrical bores, reducing operator error compared with two-point methods. The digital display gives fast, easy-to-read measurements and can improve throughput during inspection and assembly tasks. Built with materials and an IP65 sealing grade, the micrometer tolerates common workshop contaminants and maintains measurement reliability in harsher conditions.
Suitable for (tasks / use cases)
 Bore gauging on small-diameter holes and cylinders
 Incoming inspection and quality control of machined parts
 Dimensional checks during assembly and fit verification
 Routine shop-floor measurement where digital readout and protection are needed
When it may not be suitable
This micrometer is intended for internal diameters in the 16–20 mm range; it is not suitable for measuring external features, deep bores beyond its reach, or diameters outside of its specified range. For ultra-high-precision laboratory metrology where environmental control and traceable calibration to specific standards are required, a calibrated reference instrument or gauge block system may be more appropriate.
Key specifications
 Measuring range: 16–20 mm
 Contact system: three-jaw (three-point) internal contact
 Display: digital readout for direct measurement reading
 Ingress protection: IP65 (dust-tight and protected against low-pressure water jets)
 Typical application: internal diameter measurement, bore gauging, quality control
How to use
Center the micrometer inside the bore so the three contact jaws make uniform contact with the internal surface. Rotate or actuate the mechanism according to the manufacturer’s instructions until the jaws seat evenly, then read the measurement from the digital display. For best results, ensure the instrument and workpiece are clean and at stable ambient temperature; take multiple readings at different orientations if required to detect out-of-roundness and to confirm repeatability.
What to consider before purchase
 Required measuring range: ensure 16–20 mm covers the parts you need to measure
 Environmental conditions: IP65 provides dust and light water protection but is not for submersion
 Accuracy and calibration needs: verify the instrument’s stated accuracy and plan for calibration if traceability is required
 Access and bore depth: confirm the jaw length and instrument geometry suit the bore depth and accessibility
Usage recommendations
Clean contact surfaces and avoid shock or side loads on the jaws; store the micrometer in a protective case when not in use and follow the manufacturer’s calibration schedule to preserve measurement accuracy and prolong service life.

## FAQ

### How much does the INSIZE digital 3-jaw inside micrometer 3127-20 cost, and is it available for purchase?

The price is 462.49 € (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 digital 3-jaw inside micrometer 3127-20 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