Protractor 90 x150B (12pcs)

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A protractor is a measuring instrument used in geometry and mathematics to quantify angles. It typically consists of a flat, semicircular or circular tool made of transparent or opaque material, marked with degree measurements from 0 to 180 or 0 to 360. The center of the protractor usually has a pivot point, allowing it to be placed at the vertex of an angle for accurate measurement. Users align the protractor’s baseline with one side of the angle and read the degree value where the other side intersects the protractor scale to determine the angle’s measurement. Protractors come in various designs, including simple plastic versions for basic measurements and more advanced models with additional features for specific applications.

1. Stainless steel
2. Thickness: 1.2±0.5mm
3. Width: 14mm
4. For measuring angles precisely
5. Packed by blister card

KSh 11,300.00 KSh 11,800.00


Protractor 90 x150B Uses

  1. Geometry and Mathematics Education:
    • Angle Measurement: Protractors are commonly used in geometry classes to teach students how to measure and identify angles in geometric shapes.
  2. Architectural and Engineering Drafting:
    • Design and Drafting: Architects and engineers use protractors to measure and draw angles accurately when creating floor plans, blueprints, and technical drawings.
  3. Construction and Carpentry:
    • Angle Layout: Carpenters and construction workers use protractors to mark and measure angles for accurate cutting and assembly of building materials.
  4. Navigation:
    • Map Reading and Navigation: Navigational tools may use protractors to help determine bearings and plot courses on maps, especially in marine and aviation applications.
  5. Physics and Science Experiments:
    • Experimental Setups: In physics and other sciences, protractors are used in experimental setups to measure and analyze the angles involved in various phenomena.
  6. Art and Design:
    • Artistic Creations: Artists and designers may use protractors to create precise angles in their works, ensuring symmetry and accurate representations.
  7. Mechanical Engineering:
    • Machine Design: Mechanical engineers use protractors for angle measurements in the design and analysis of machine components and mechanisms.
  8. Surveying:
    • Land Surveying: Surveyors use protractors to measure angles and bearings in the field when mapping land and determining property boundaries.
  9. Mathematical Calculations:
    • Trigonometry: Protractors can be used in conjunction with trigonometric principles for solving mathematical problems involving angles.
  10. DIY Projects:
    • Home Improvement: DIY enthusiasts use protractors for accurate angle measurements when working on various home improvement projects.
  11. Metalworking:
    • Metal Fabrication: In metalworking and welding, protractors are used to mark and measure angles for cutting and joining metal components.
SKU: AHS14818 Category:


90 X 150B

Safety Precautions

  1. Mindful Handling:
    • Handle the protractor with care to avoid any sharp edges or corners that could cause cuts or injuries.
    • Be cautious when transporting or storing the tool to prevent damage and maintain its accuracy.
  2. Proper Storage:
    • Store protractors in a designated place where they won’t be crushed or damaged by other tools or objects.
    • Keep them away from extreme temperatures or direct sunlight, as this can affect the material and accuracy.
  3. Pivoting Point Safety:
    • The central pivoting point of the protractor can be sharp. Avoid placing your fingers too close to this point to prevent pinching or injury.
    • When sharing protractors, ensure that users are aware of the sharp point and handle it with care.
  4. Clear Work Area:
    • Ensure that your work area is clean and clutter-free to prevent accidents. Remove any unnecessary tools or materials that may interfere with your use of the protractor.
  5. Use the Right Tool for the Job:
    • Select the appropriate protractor for the task at hand. Different protractors are designed for various applications, and using the right tool enhances accuracy and safety.
  6. Be Aware of Surroundings:
    • Pay attention to your surroundings, especially when working in a group or crowded space. Avoid unintentional collisions with other individuals or objects.
  7. Correct Alignment:
    • When measuring angles, ensure the protractor is correctly aligned with the sides of the angle. Misalignment can lead to inaccurate measurements and potentially affect the outcome of a project.
  8. Secure Workpieces:
    • If you are using a protractor in conjunction with cutting or machining tools, secure the workpieces properly to prevent movement during the process.
  9. Eye Protection:
    • When working with tools that generate debris or dust, wear appropriate eye protection to shield your eyes from potential hazards.
  10. Educate and Train Users:
    • If the protractor is being used in an educational setting or workplace, provide proper training on its usage and safety guidelines.
    • Emphasize the importance of following safety protocols to minimize the risk of accidents.
  11. Supervision for Beginners:
    • If someone is new to using a protractor or similar tools, provide supervision until they become proficient and confident in handling the tool safely.

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