What’s in a name? If you’re referring to the Channellock BigAZZ Tongue and Groove Plier it’s everything. It’s big: over 20” long with a capacity of 5-1/2”. It’s bad: heat-treated teeth and a patented undercut tongue and groove design. If you mean business, invest in a tool that does, too – the Channellock BigAZZ Tongue and Groove Plier.Features Right angle laser heat - treated teeth grip better and last longer Big as the job, big as you need Patented undercut tongue and groove design assures no slip jaw action Patented reinforcing edge minimizes stress breakage Patented PermaLock fastener eliminates nut and bolt failures Distinctive Channellock Blue comfort grips Made in USA Specifications Type:12 adjustments Type: 12 adjustments Length: 20-1/4" Max Jaw Width: 5-1/2"