Force pro Check Pen Brake Liquid Tester Brake Fluid Tester Car Diagnostic Tool Head combines slim design for

Head combines slim design for accessibility with strength for performance

5/8" and 3/4" with a 3/8" bit for easy use with power tools

This unique system allows greater contact with the flats of the fasteners

Webbed hold-down strap included

Force pro Check Pen Brake Liquid Tester Brake Fluid Tester Car Diagnostic Tool Head combines slim design forCheck the health status of DOT3, DOT4 car brake fluid, dangerous if you do not change brake fluid timely 5 LED display lights the percentage of moisture content in the brake fluid, as the test results are more accurate Easy to use simply power up, dip probes into brake fluid and read results,Only takes seconds to know the results High quality electrical conductivity mental design, super strong ABS shell, small compact size, easy to carry in pocket