Macht Tools are one handed tools with ultimate gripping power. What makes them so effective is the unique head, jaw design which firmly locks onto 3 sides of a nut which prevents slipping and burring unlike traditional wrenches that work only on 2 sides. Macht Tools come in a range of 5 tools opening from 10mm to 155mm – 10inch, 14inch, 18inch, 24inch and 36inch