Chang Loon Ratchet Wrenches Earn Global Acclaim

Colored rings embedded in heads have proven to be a successful design of Chang Loon’s ratchet box-end wrenches. (Photo courtesy of Chang Loon)


Chang Loon Industrial Co., Ltd. is a leading Taiwanese developer and maker of ratchet wrenches, patented wrenches, bolt cutters, and patented clamps. The firm has built a reputation in fields like hardware DIY and automotive repair.

Chang Loon has acquired multiple patents, with its ratchet wrenches the most significant among its product lines. Since 2004, Chang Loon has used an innovative, distinctive production and assembly method to embed colored rings in specific locations on the box end of a ratchet wrench, the patented "ColorRing® Ratchet Wrench," allowing the firm to stand out among competitors with its unique design. The unique identification design was the first of its kind in the industry and cemented its brand recognition, making it highly popular among international buyers since its launch. Regardless of the color of the ratchet wrenches come in, be it red, blue, yellow, or orange, the brand recognition is so significant that buyers making orders and seeing the color association on the ratchet wrenches can say the products came from Taiwan's Chang Loon.

Chang Loon's colored ratchet wrenches' quality and sales are examples of its expertise in designing and manufacturing wrenches. With so many global buyers recognizing and favoring the iconic colored ratchet wrenches, it shows how Chang Loon's innovative, distinctive design has proved to be a great success. It also allows users to identify which measurement unit (metric or imperial) of a wrench's size is in with incredible ease and efficiency.

High Number of Teeth Ratchet Wrench. (Photo courtesy of Chang Loon)


To allow users to operate smoothly in a narrow space, Chang Loon developed a 100-tooth ratchet wrench with 3.6 degrees at each turn to attain effortless operation and torque accuracy, which is a production technological breakthrough on a global scale. The flexible use with limited backlash has considerable advantages in the car repair industry or other industrial repairs.

Chang Loon has developed a new type of wrench with black surface treatment, which has no environmental issues. (Photo courtesy of Chang Loon)


In accordance with international environmental protection issues, Chang long continues to develop new black surface treatments, which do not contain trivalent chromium or hexavalent chromium, and have no environmental issues.
1. Environmentally friendly surface treatment
2. Passed 5%, 48 hours salt spray test.
3. The laser design to improve the size and logo recognition.

Chang Loon’s ProRatchet® family with high-precision gear wrenches. (Photo courtesy of Chang Loon)


Chang long's newly developed products are implemented in the direction of being kind to the earth, friendly to the environment and reducing pollution.

Chang Loon developed a series of "new ultra-thin head ratchet wrenches" that could produce multi-functional ratchet wrenches boasting higher-rated torque and more robust structure. Such products have found a large user base in the professional car repair field.

Chang Loon uses advanced testing instruments, including precision projection instruments and tension testers, to ensure that quality control standards are met, and production also meets international standards, such as ANSI and DIN.