The pliers have several grooves that allow the lower plier jaw to move up and down, increasing or decreasing the distance between the two jaws. These pliers are made of carbon steel and a feature a non-slip dipped cushion handle.
Proto 12” Groove Joint Pliers w/ Grip Tethered J264SGXL-TT USA NEW
Matco PGJ12 12" Groove Joint Pliers + Mac Tools P301714 & P301822 Needle Nose
MATCO PGJ12B 12-INCH "ORANGE" GROOVE JOINT PLIERS
Dura Max UH70165J 2-Piece 6" Slip Joint, 8" Groove Joint Pliers Set
Lot of 5 Tongue Groove Joint Pliers Slip Joint Adjustable & 1-9" linesman
Truecraft Pliers Slip Joint Groove Joint 10", K509G Japan