# INSIZE Angle Block / Precision Square KATOWNIK 150/100 MKSA Class 1

**URL:** https://aio.lv/en/product--insize-4791-1501--11777194
**Data updated:** 2026-03-08 22:46 (EET)
**Category:** Measuring tools
**Manufacturer:** INSIZE
**Manufacturer code:** 4791-1501
**EAN:** 6940561964561
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--insize-4791-1501--11777194

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

INSIZE KATOWNIK 150/100 MKSA Class 1 is a precision angle block (square) used for accurate inspection and setup tasks. Designed for metrology and workshop use, it provides defined 150 mm and 100 mm reference faces with MKSA grading and Class 1 accuracy. Suitable for calibrating fixtures, checking squareness, and aligning machinery where high dimensional accuracy is required.

## Long description

INSIZE Angle Block / Precision Square KATOWNIK 150/100 MKSA Class 1 is a precision inspection and setup tool that provides two reference faces of 150 mm and 100 mm for squareness, alignment and dimensional verification tasks. Manufactured for metrology and workshop environments, this precision square features MKSA grading and Class 1 accuracy to ensure repeatable reference surfaces for measuring fixtures, machine setup and component inspection.
Advantages
The precision square offers defined, ground reference faces with tight tolerances appropriate for calibration and inspection routines. Its Class 1 accuracy and MKSA grading deliver consistent squareness and dimensional stability during routine use. The dual-size design (150 mm and 100 mm faces) increases versatility, reducing the need for multiple separate gauges. The construction is suited to workshop handling while maintaining metrological-grade flatness and perpendicularity.
Suitable for
 Calibrating and checking fixtures and jigs
 Verifying squareness of machine setups and workpieces
 Alignment of tooling and measurement setups
 Use in metrology labs for dimensional reference
 Quality control inspections in production environments
Key specifications
 Reference face lengths: 150 mm and 100 mm
 Accuracy class: Class 1
 Grading: MKSA
 Purpose: Precision angle block / square for inspection and setup
 Typical applications: squareness verification, alignment, calibration
How to use
Place the precision square on a stable, flat surface or against the component or fixture to be checked. Ensure contact surfaces are clean and free of debris before measurement. Use appropriate measuring instruments (dial indicators, height gauges, surface plates or linear scales) referenced to the square's faces. For machine or fixture alignment, position the square against the datum surface and take measurements at multiple points to confirm perpendicularity and straightness. Store the square in a protective case or on a clean shelf when not in use to preserve accuracy.
Usage recommendations
Handle the angle block with care: avoid impacts and exposure to corrosive environments. Periodically verify accuracy against a calibrated master or in a metrology lab, especially after heavy use or if the square has been dropped. Clean surfaces with a lint-free cloth and, if necessary, a mild solvent that does not harm the material finish. Use the 150 mm face for larger setups and the 100 mm face for tighter or more confined checks.

## FAQ

### How much does the INSIZE KATOWNIK 150/100 MKSA Class 1 Angle Block cost, and is it available for purchase?

The price is 25.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 13.07.2026 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. All transactions are 100% secure and encrypted.

### 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/11777194/67168015_large.webp