The tiniest in antique wrenchery, this wrench is based off an 1879 patent by Charles Billings. Each one is made from 3/8in solid steel (44W) and is 3in long. All adjusters are solid brass.
This 3in/7.5cm long wrench is intended for use with nuts and bolts up to 7/16in/1.1cm, but the jaws open to just under 1in/2.5cm if you need that extra distance. Perfect to carry every day and easily made into a bottle opener.