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Measuring Squares Try squares Combination squares Rafter squares Framing squares T-squares Sliding T-bevel
Straight Edge Rulers Stainless steel rulers Aluminum straight edges rulers Cork-backed steel rulers Pocket rulers Ruler set
Round Head Protractor Stainless steel protractors Digital angle rulers
Stainless Steel Calipers Vernier calipers Digital calipers Dial calipers
Distance Measuring Wheels Measuring Ground Wheels Digital Measuring wheels
Click Counters Hand tally counters Pull counters
DIN 875 Squares
Pi tapes measure
Drawing board A3 drawing board A4 drawing board Drawing table
Plumb Bob Kit
Chalk line

Wholesale Straight Edge Rulers Manufacturers

The rulers include stainless steel rulers, aluminum straight edges, Cork-backed steel rulers, pocket rulers, and taper gauges. With different graduations (metric  & imperial marking lines, which include mm, cm, or 1/64, 1/32, 1/16, 1/8 inch) and conversion table. 
Uses of ruler
1) To measure the length and width of different objects.
2) To draw straight lines.
3) For engineering purposes where accurate measurements are required.
4) For carpentry work.
5) To measure roads.
6) For taking measurements before and during construction.
Have 150mm to 2000mm or 6 inches to 80 inches, and can meet different length measuring requests.

We are a global source of Measurement Tools.

Hangzhou Jinnan Tools & Measure Co.,Ltd. started in 1985, specializes in the development, production and sales of various manual measuring tools. "Survival by quality, development by reputation" is our tenet.

The company is China Straight Edge Rulers Manufacturers and OEM Straight Edge Rulers Factory , and has professional high-precision manufacturing equipment and professional equipment operators, has a high-tech and experienced engineer team, and strictly controls every process from raw materials to finished product storage, and products from design to processing, from drawing production to workshop production, every link is precise and precise. And in the increasingly competitive market, we have insight into market demand, continuously research, upgrade, and develop automatic production equipment, and take improving precision and quality as our responsibility to provide customers with better products. Cooperated with many world famous brands for many years, such as STANLEY, FACOM, MILWAUKEE, OFFICE DEPOT, STAPLES.

Hangzhou Jinnan Tools & Measure Co.,Ltd.

  • Customization

    We have a strong R & D team, can develop and produce products according to customer’s requests.

  • Quality

    Have a professional testing room with advanced testing equipments, and let the Bureau of Standard Measurement do calibration every year, to ensure product accuracy and quality.


  • Multiformity

    Have many kinds of measuring tools, that can meet customer’s request and want from different countries.

  • Capacity

    High capacity, so the delivery time is stable. Also, can accept and ensure the order ship date which temporarily increases quantity.

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Booth No. of the 133rd Canton Fair

We're glad to inform you our 133th Canton Fair booth number in below.    Phase 1 Booth No.: 14.2E36 - 37  (For Measuring Tools) Date :  15th to 19th, April, 2023   Phase 3 Booth No.: 10.2F05 - 06  (Fo...

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Industry knowledge

Understanding Ruler Sets: Definition and Types
Ruler sets are a collection of measuring tools used for precision measurement in various industries, including engineering, construction, and manufacturing. These sets typically include a range of rulers, such as steel rulers, tape measures, and digital calipers, each with its own unique features and benefits.
Steel rulers are the most common type of ruler in a ruler set, known for their durability, accuracy, and ease of use. Tape measures, on the other hand, are highly flexible and ideal for measuring curved surfaces, while digital calipers offer greater precision and the ability to measure in both metric and imperial units.

Choosing the Right Ruler Set: Factors to Consider
Selecting the right ruler set is essential for achieving accurate and consistent measurement results. When choosing a ruler set, there are several factors to consider, including the intended use, the level of precision required, and the material and construction of the rulers.
For example, if you need to measure small parts with high accuracy, a digital caliper may be the best choice. If you work in a rugged environment, a steel ruler may be more durable and resistant to damage. Additionally, it is important to consider the unit of measurement, as some ruler sets offer both metric and imperial units.

Maintaining and Using Your Ruler Set: Best Practices
To ensure accurate measurement results and prolong the lifespan of your ruler set, it is important to follow best practices for maintenance and use. This includes storing your rulers in a dry, clean environment, free from dust and debris. Regular cleaning and calibration of your ruler set are also important to maintain accuracy and consistency.
When using your ruler set, it is important to use the appropriate ruler for the task at hand and to ensure that the ruler is properly aligned with the object being measured. Additionally, it is important to hold the ruler securely and to avoid applying excessive force or pressure, which can lead to bending or warping of the ruler.

In conclusion, ruler sets are a critical tool for achieving precision measurement in a variety of industries. By understanding the types of ruler sets available, choosing the right set for your needs, and following best practices for maintenance and use, you can achieve accurate and consistent measurement results for your projects.