Mar 15, 2022 · The Channellock 12 in. Straight Jaw Tongue and Groove Pliers are constructed with highcarbon C1080 steel. The tool is fashioned with laser heattreated teeth that clamp down perpendicularly for strong, nonslip jaw action. Undercut tongueandgroove fabriion allows this heavyduty tool to perform without slipping, giving users the confidence ...