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The APEX TOOL GROUP LLC RTAB8CG is an 8-inch tongue and groove plier featuring a dual-material grip design and an auto-bite adjustment mechanism. Sometimes called channel-lock or arc-joint pliers, tongue and groove pliers are a core hand tool for plumbers, HVAC technicians, and general trades. The auto-bite feature allows the jaws to self-set on the workpiece without manual channel selection, speeding up fastener and fitting work. The dual-material handle provides grip in wet or oily conditions. At 4.07 pounds per package of six units, these are sold in a six-piece unit of measure.
These pliers are suited for residential and commercial trade applications involving pipe fittings, nuts, compression connections, and similar fasteners encountered in plumbing rough-in, HVAC refrigerant line service, and general mechanical work. The 8-inch overall length positions them as a mid-size tool appropriate for tight spaces and standard-size fittings. Plumbers and HVAC technicians typically keep a pair on hand for compression fitting assembly, supply line tightening, and packing nut adjustment.
Designed as a general-purpose tongue and groove plier suitable for plumbing, HVAC, and mechanical trade applications requiring adjustable jaw gripping of round, flat, or hex workpieces.
These pliers are a hand tool used by licensed plumbers, HVAC technicians, and general trade professionals. Always select the correct jaw opening for the fastener or fitting to avoid rounding edges. Do not use pliers as a substitute for a properly sized wrench on soft brass or chrome fittings where marring is a concern. Refer to applicable codes such as the IPC or IFGC for required torque and connection methods on gas and water piping systems.
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