/kloc-How big is the opening of the 0/5 inch wrench?

4.3 to 4.5 centimeters. By inquiring the parameters of 15 inch wrench, it is known that the opening of 15 inch wrench is 4.3 to 4.5 cm. Wrench is a patent filed by Hangzhou Giant Star Tool Co., Ltd. and Hangzhou Giant Star Technology Co., Ltd. on April 3, 2010158056, with the publication number of CN 104097 166A.