Wire Identifiers | McMaster-Carr

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0V AC to 600V AC

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American Wire Gauge

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U.S. Steel Wire Gauge

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DFARS Specialty Metals

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High-Resolution Circuit Tracer

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13 Products

Measuring and Inspecting

Data Cable Identifiers

Data Cable Identifiers

Trace unshielded data and telephone cables to their source

Circuit Breaker Identifiers

Circuit Breaker Identifiers

Determine which circuit breaker is connected to an electrical receptacle

Circuit Tracers

Circuit Tracers

Locate cables behind walls, check for continuity, and identify circuit breakers

Current Detectors

Current Detectors

Check for AC current and voltage without making direct contact with wire

Thread Size Identifiers

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

Metal Gauges

Press sheet metal or wire into the slots to determine their thickness or gauge size

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)