Clean and Resize Male and Female 7-Way Round Pin Tractor Trailer Connectors.

Thoroughly remove corrosion on commercial truck and trailer connections which, when left alone, can lead to poor electrical connections. This multi-patented tool also doubles as a pin/socket wear gauge and tests whether the connection needs to be resized or replaced.

• Maintains continuity and prevents circuit failure
• Quickly and precisely cuts away corrosion
• Enhances electrical contact points and extends harness life
• Use as a pin-wear gauge
• Male and female terminal cleaners included