Channellock's SpeedGrip tongue and groove pliers make fast and easy non-slip adjustments so you can get the job done even quicker. Laser heat-treated crosshatch teeth grip stronger and last longer thanks to innovative engineering. There is also a reaming feature for easy deburring of pipe. Finally, like all Channellock pliers, SpeedGrip tongue and groove pliers are Made in the U.S.A. from U.S. high carbon steel for ultimate strength and have ergonomic handles with no-slip grips.