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Coil of black 18 gauge rubber insulated test lead wire 100 feet long

Electronix Express

Electronix Express 18 Gauge Rubber Test Lead Wire Black 100 Feet

SKU CH-G5P8-7XVBD

Flexible 18 gauge rubber-insulated wire for building custom test leads, supplied in a 100 foot black reel

  • Conductor gauge18
  • Wire colorBlack
  • Insulation materialRubber
  • Flexible stranded conductor simplifies custom test-lead builds
  • 18 gauge wire handles typical low-voltage signal and power tasks
  • Rubber insulation resists abrasion and stays pliable in cold conditions
  • Black colour provides clear visual identification in bundled wiring
  • 100 foot spool supplies ample length for multiple projects

100-foot 18-gauge rubber test lead wire

This 100-foot spool of 18-gauge stranded wire is insulated with flexible black rubber and intended for building custom test leads. The rubber jacket resists cracking while staying pliable during bench work. It ships new on a single continuous length. ||

Suits hobbyists and technicians making patch cables

The wire serves anyone assembling their own probe leads, breadboard jumpers or low-voltage automotive test cords. It is not suited for mains-voltage installations, high-current battery cables or applications requiring shielded or twisted-pair conductors. Builders needing colour-coded pairs or higher-temperature insulation should look elsewhere. ||

One hundred feet of 18-gauge capacity

The spool provides enough length for dozens of short leads across a typical workbench. At 18 gauge the conductor handles modest signal and low-power loads comfortably but reaches its limit on sustained currents above a few amperes or runs where voltage drop becomes critical. For longer permanent wiring a heavier gauge is required.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 58% of the 1,610 comparable items (median $25.99).

Specifications

Product
Wire colorBlack
Size & build
Insulation materialRubber
More details
Conductor gauge18

Questions about this item

What connectors or terminals do I need to crimp onto this 18 gauge stranded wire to make working test leads?

You will need crimp terminals or banana plugs sized for 18 AWG stranded conductor; the rubber insulation strips cleanly so the strands seat fully in the barrel.

Will this 18 gauge rubber insulated wire remain flexible when routed next to stiffer PVC loom wiring in an older vehicle?

Yes, the stranded construction and rubber jacket stay pliable at low temperatures, so it bends with the existing harness instead of fighting it.

How can I confirm the 100 foot spool of black 18 gauge wire has no breaks before I cut it into test leads?

Use a multimeter on the continuity setting from one end of the spool to the other; a steady beep shows the single conductor is intact throughout.

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