Wrench (spanner)

摘要

The invention relates to a wrench having jaws 9 receiving the screw head 11 or a nut, the jaws comprising, for width variation, a fixed jaw 2 and an adjustable jaw 6, the inner gripping faces 3, 7 of the two jaws 2, 6 coming closer to one another with ever-decreasing distance towards the front gripping opening 10 and forming an angle of 60 DEG with one another, and the inner back face 8 of the lining 9 forming a bearing face which bears at an angle of beta = 60 DEG to both gripping faces 3, 7. <IMAGE>