America's first multi-point adjustable pliers are still considered by many to be America's best. Undercut tongue-and-groove design ensures slip-free fastener and pipe sizing. Reinforced jaw edge minimizes the potential for stress fractures. Reliable PermaLock® fastener provides near fail-proof performance. Ultra-durable high-carbon steel features a protective, corrosion-resistant e-coating. Iconic CHANNELLOCK BLUE® grips help enhance working comfort, minimizing hand fatigue and stress.