The CHANNELLOCK® 830 30" Adjustable Wrench is the largest in the CHANNELLOCK® family. As big as the job you need, this heavy duty wrench offers a 3 inch jaw capacity and a unique adjustment dial for easy sizing is enclosed for protection against the toughest job site elements. CHANNELLOCK® Adjustable Wrenches are made in Spain and forged from rugged chrome vanadium steel.