The product is developed on the basis of the innovation and improvement of old style adjustable spanner. Upon successful development, it is widely used by automobile and motorcycle mechanics and in such fields as water and electric installation as well as family use, winning good
appraisal and recognition, it is thought to be convenient and fast to use and named as convenient adjustable spanner. In addition, patent was applied for in 2005, and at present it has been put into volume production according to American standard and European Union standard. Compared with the old style product, the product is mainly characterized by the following, I.E. brand new look, fine outline, reasonable transmission structural design, reliable performance, convenience and swiftness, flexibility and handiness practicability, besides, long time use won't hurt your hands, which reaches the ideal goal of practicability. Moderate in price and complete with a long specification complete with a long service life, the product is a kind of practical tool indispensable for various fields as well as family maintenance etc.