1 6

HARFINGTON 8pcs Triangular Ruler Set 15mm Aluminum Geometric Protractor Triangle Engineering Scale Drafting Ruler Kit for Office Home, Blue Red - size: 15mm

HARFINGTON 8pcs Triangular Ruler Set 15mm Aluminum Geometric Protractor Triangle Engineering Scale Drafting Ruler Kit for Office Home, Blue Red - size: 15mm

$13.10 USD
$13.10 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • Size - Ruler range: Straight ruler: 15cm, triangle ruler: 7cm/10cm, protractor: 180 degrees, accuracy: 0.1cm, thickness: 1mm.
  • Material - Triangle ruler set is made of aluminum alloy, with high hardness, strong toughness, anti-rust and anti-corrosion, strong and durable, lightweight and reliable.
  • Feature - Geometry kit is laser etched with high-definition scale markings that will not fade, ensuring that every line and number can be read easily and accurately with less eyestrain. The rounded corners of the size are not easy to hurt your hands.
  • Application - This drawing ruler kit is perfect for professionals and amateurs. It is a must-have measuring and drawing tool for architects, engineers and carpenters, and can also be used for precise measurements in the classroom, office or home.
  • Package Content - 2pcs straight rulers, 2pcs 30/60 degree triangle rulers, 2pcs 45/90 degree triangle rulers, 2pcs protractors. Different types of rulers can meet different drawing needs and improve measurement and drawing efficiency.

Overview

  • Material: Aluminum
  • Brand: HARFINGTON
  • Color: Blue Red
  • Unit Count: 8 Count
  • Number of Items: 8

Low stock: 10 left

View full details

Reviews

  • ⭐⭐⭐⭐⭐

    Emily Carter — Seattle, Washington

    The science kit was clearly organized and easy to follow. It made our weekend project feel enjoyable and gave us plenty of opportunities to explore each idea together.

  • ⭐⭐⭐⭐⭐

    Daniel Brooks — Austin, Texas

    I liked the variety of hands-on projects available at TinkerVanta. The kit we selected was engaging, practical, and well suited to a curious beginner.

  • ⭐⭐⭐⭐⭐

    Lauren Mitchell — Denver, Colorado

    The building project kept us interested from start to finish. The finished model was rewarding to complete, and the activity encouraged creative problem-solving along the way.

  • ⭐⭐⭐⭐⭐

    Jason Reed — Portland, Oregon

    Our electronics project was a fun introduction to circuits and basic engineering concepts. The hands-on format made the activity easier to understand and more memorable.

New Arrivals

View all

FAQ

1. What types of products does TinkerVanta offer?


TinkerVanta offers science kits, engineering projects, robotics, electronics, building models, maker crafts, workshop supplies, and educational exploration activities for a variety of interests and skill levels.

2. Are your products suitable for all ages?


Recommended ages vary by product. Please review the age guidance, skill level, dimensions, included components, and safety information on each product page before ordering. Adult supervision may be required.

3. How do I choose the right kit?


Consider the user’s age, interests, experience, and preferred project type. Product descriptions provide information about contents, difficulty, assembly requirements, and recommended use to help you compare available options.

4. Are batteries, tools, or additional materials included?


Included components vary by product. Some projects may require batteries, household materials, tools, adhesives, or other supplies that are sold separately. Please check the individual product description before purchasing.

5. When will I receive my tracking number?


Tracking information is usually provided within 3–5 business days after an order is placed. During busy periods or when additional processing is needed, it may take up to 7–8 business days.

6. How long does delivery take after tracking is provided?


Delivery time depends on the carrier, destination, weather, and other transportation conditions. After tracking becomes available, delivery may require approximately 4–5 additional business days or longer in some circumstances.

7. Why is my tracking information not updating?


Carriers may need additional time to scan and update a shipment after the tracking number is created. Please allow a few business days for movement to appear. If there is still no update, contact us for assistance.

8. Can I change or cancel my order?


Contact us as soon as possible after placing your order. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once processing or shipment preparation has begun.

9. What should I do if my order arrives damaged, defective, or incomplete?


Contact us promptly with your order number, a description of the issue, and clear photos of the product, packaging, and shipping label. We will review the information and explain the available resolution options.

10. How can I contact TinkerVanta?


Email us at zircorncirkne@gmail.com or call +1 (936) 260-5549. Please include your order number when contacting us about an existing purchase so we can assist you more efficiently.

Blog posts

View all
  • The Beginner’s Wiring Rescue: 7 Steps to Fix a STEM Robotics Kit

    The Beginner’s Wiring Rescue: 7 Steps to Fix a ...

    Learn how to troubleshoot common wiring mistakes in beginner robotics and STEM kits with a systematic, hands-on approach. Discover how to trace circuits, check connections, diagnose motors, and turn failed...

    The Beginner’s Wiring Rescue: 7 Steps to Fix a ...

    Learn how to troubleshoot common wiring mistakes in beginner robotics and STEM kits with a systematic, hands-on approach. Discover how to trace circuits, check connections, diagnose motors, and turn failed...

  • Why Your Beginner Robot Won’t Move: 7 Wiring Mistakes to Check First

    Why Your Beginner Robot Won’t Move: 7 Wiring Mi...

    Is your beginner robotics kit not working? Learn how to troubleshoot common wiring mistakes, check power and polarity, inspect motors, and turn robot failures into valuable STEM learning opportunities.

    Why Your Beginner Robot Won’t Move: 7 Wiring Mi...

    Is your beginner robotics kit not working? Learn how to troubleshoot common wiring mistakes, check power and polarity, inspect motors, and turn robot failures into valuable STEM learning opportunities.

  • How to Fix Beginner Robotics Kit Wiring Mistakes Without Starting Over

    How to Fix Beginner Robotics Kit Wiring Mistake...

    Learn how to troubleshoot beginner robotics kit wiring mistakes without rebuilding the entire project. Discover practical STEM troubleshooting techniques for motors, power connections, polarity, and DIY robots.

    How to Fix Beginner Robotics Kit Wiring Mistake...

    Learn how to troubleshoot beginner robotics kit wiring mistakes without rebuilding the entire project. Discover practical STEM troubleshooting techniques for motors, power connections, polarity, and DIY robots.

1 3
View all