Jonards adjustable wrenches are made from high carbon steel and are heat treated for maximum strength and durability. This adjustable wrench also features the following:

Precision formed knurled worm gear for smooth operation
Ergonomically designed vinyl-dipped wide handles for greater comfort
English and Metric scales on each side of the wrench to allow for faster adjustments
Jaw capacity opens to 0.511- (13 mm) wide
This product complies with ASME B107.8-2003 and ASNI standards