The Channellock 10 in. Straight Jaw Tongue and Groove Pliers are constructed with high-carbon steel and fashioned with laser heat-treated teeth for strong, nonslip jaw action. Undercut tongue-and-groove fabrication allows this heavy-duty tool to perform without slipping, providing maximum torque and leverage aided by the comfort of Channellock BLUE grips. The patented PermaLock fastener eliminates bolt and nut failure in any of the seven adjustable jaw settings, supplying strength to loosen and tighten threaded hardware up to 2 in.