Protractor Calibration service

With the aim of serving customers with the best after-sales services, EMIN Vietnam has established the Equipment Inspection - Calibration - Repair Service Center. With the support from numerous equipment manufacturers in the world, EMIN Vietnam possesses well-prepared calibrating instruments. EMIN Vietnam has successfully repaired and calibrated specialized equipment in Vietnam, ensuring the quickness, effectiveness and convenience for customers. Only few technical trading company in Vietnam do possess this technical capacity including EMIN Vietnam.

>> Protractor
- Protractor is an accurate angle measurement tool, it helps users to create and replicate the angle you want to measure. Rulers are usually round, square semicircle. The material to make the protractor is usually high-grade steel, ensuring solid, durable, and anti-corrosion even when you work outdoors.

>> Other information
The protractor consists of a measuring face that displays numbers, called a fixed section and a moving part to slide when measuring. Besides, it also includes clamp lock and adjustment buttons to help make the right measurements.

♦ Structure of protractor
Depending on the different types of protractors, there are different types of rulers, but most of them have one thing in common: a half circle is divided into 180 equal parts, recorded from 0 degrees to 180 degrees, the center of the semi-circle is the center of the ruler, which is considered to be a 180 degree protractor.

 > The angles are measured in degrees, denoted by degrees as a small circle

 > A large circle is 360 degrees, and a half circle or its straight angle is 180 degrees.

 > A half circle or its right angle part is 90 degrees.

♦ Application of protractor

 > Protractor is widely used in construction

 > Protractor is a product chosen by a large number of customers, it ensures high applicability. Currently, this is an indispensable device for each construction project to ensure accuracy as the drawing as well as to ensure that the project is used perfectly. Not only that, the protractor is also used for measuring the angle of inclination, measuring the slope of construction works as well as interior design or accurately measuring small distances.

 > The ruler has a dial with a built-in magnifying glass to read figures of each level 1, a vernier scale for resolution every 5 minutes, and a 6 scale. It performs in both directions clock hands with a measuring range of 3 x 90 degrees.

♦ Common types

 > 360 degree protractor
 > Multi-purpose protractor
 > Ruler of inclination
 > Electronic protractor
 > Electronic protractor Mitutoyo
 > Pupil protractor

For further information about calibration service, visit our website at:

For further information and calibration requirements, Please contact

Equipment Inspection - Calibration - Repair Service Center - EMIN Vietnam JSC 

 Adress: No 11, Hoang Cau Moi Street, Trung Liet Ward Dong Da District, Ha Noi City

Email: - Hotline: 097.251.2864 (Mr. Truong)