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    200x400mm Adjustable Stainless Steel Angle Protractor

    Buy a round-head angle protractor online for measuring the angle of cut and installed materials, adjustable from 0 to 180 degrees, stainless steel protractor dimensions of 90 x 200 mm. The round head angle protractor features a small, compact design and is commonly used in the construction, engineering and woodworking industries.
    SKU: SISCO-AP-A400
    This product has a minimum quantity of 5
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    🔙 30-day returns
    📅 Delivery: 7-12 days

    High quality round head stainless steel angle protractor comes in a size of 90x200mm, with an adjustable measuring range of 0 to 180 degrees and a strong marking nut fixing mechanism to prevent displacement.

    Stainless steel angle protractor

    High quality stainless steel angle protractor, robust and durable

    • 200x400mm Stainless steel angle protractors are highly accurate and precise in measuring angles, ensuring that your measurements are as close to perfect as possible.
    • The 180-degree angle finder ruler has a laser scale for accurate and practical reading.
    • The adjustable stainless steel construction of angle protractors makes them very durable and resistant to wear and tear, ensuring they can withstand frequent use and last for a long time.
    • SISCO adjustable stainless steel angle protractor is lightweight and compact, making them easy to carry around and use on the go.


    Angle protractors are commonly used in fields such as construction, engineering, and carpentry to measure angles for cutting and fitting materials. They are also used in mathematics and physics to solve problems involving angles and trigonometry.

    Angle protractor applications

    • Model: SISCO-AP-A2040
    • Measuring Range: 0-180 degrees
    • Size: 200x400mm
    • Total Body Length: 505mm
    • Diameter of Disc: 200mm
    • Width: 19.8mm
    • Body Thickness: 1.4mm
    • Weight: 324g

    Dimension (Unit: mm)

    200x400mm angle protractor dimension


    Q1: What is an angle protractor?
    A1: An angle protractor is a measuring tool used to measure angles. It typically consists of a flat, plastic or metal base with a pivoting arm that has a graduated scale marked in degrees. The arm can be rotated to any angle, allowing the user to measure the angle between two lines or the angle of a single line relative to a horizontal or vertical axis.

    Q2: How do I use an angle protractor?
    A2: To use an angle protractor, place the base of the protractor on the surface you wish to measure the angle of. Align the protractor's vertical or horizontal axis with one of the lines you want to measure the angle between. Then, rotate the protractor's arm until it is aligned with the other line you want to measure. Read the angle measurement from the graduated scale on the arm.

    Q3: What are some common applications of angle protractors?
    A3: Angle protractors are commonly used in a variety of applications, including carpentry, metalworking, engineering, and drafting. They are often used to measure the angle of a cut to ensure it is accurate and to create angled cuts for various projects. They are also useful in determining the slope of a roof or the angle of a hillside. In addition, angle protractors can be used in mathematical and scientific applications to measure angles between lines or to calculate trigonometric functions.

    Tips: Can stainless steel angle protractors be used with non-metal materials?

    Yes, stainless steel angle protractors can be used with non-metal materials. The material of the protractor does not affect its ability to measure angles. However, the protractor may have difficulty gripping or staying in place on some non-metal materials, such as smooth or slippery surfaces. In such cases, you may need to use clamps or other tools to hold the protractor in place. Additionally, if the non-metal material is opaque, it may be difficult to see the markings on the protractor, which could make it harder to accurately measure angles.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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