Fluke introduced the TL175 TwistGuard™ Test Leads as the world's first test leads with a manually adjustable test tip guard for use in different measurement environments. Designed using patented TwistGuard™ technology, the exposed probe tip length can be adjusted from 19mm to 4mm (0.75 inch to 0.16 inch) by simply twisting the test lead. The TL175 Test Leads are safety rated for CAT III 1000 V and CAT IV 600 V when the tip guard fully extended, and safety rated for CAT II 1000 V when the tip guard is retracted. Constructed to last longer than similar models and tested to withstand over 30,000 bends without failure, the Fluke TL175 TwistGuard Test Leads feature WearGuard™ insulation, extra-heavy strain relief on both probe-end and plug-end, and the WearGuard™ indicator to provide a visual cue when the test leads are in need of replacement. Extremely versatile, the TL175 Test Leads are compatible with any instrument that accepts 4 mm shrouded banana plugs.Learn MoreTest probes are now available with Fluke's TwistGuard technology. The TP175 Test Probes work with all of Fluke's modular test leads. View the TP175 Test Probes.