Wrench for rotating fastening element, comprises jaw piece and handle, where jaw piece comprises primary jaw section and secondary jaw section, and jaw opening is formed between primary jaw section and secondary jaw section

摘要

The wrench (10) comprises a jaw piece (12) and a handle (11), where the jaw piece comprises a primary jaw section (121) and a secondary jaw section (122). A jaw opening (123) is formed between the primary jaw section and the secondary jaw section. The jaw opening has an arcuate bottom portion (1231) formed at the lowest point of the jaw opening. The jaw opening is formed for receiving a hexagonal head (20) of a fastening element.