Fluke tlk281 suregrip automotive test lead kit fluke fluke tlk281 p complete set of test and measurement accessories designed especially for automotive specialists use the sharp stainless steel probes to contact the wire conductor or pinpoint tests on a circuit or relay and the large jaw alligator clips to get a good ground on the engine or to connect to the battery terminals an extra long set of alligator clips easily grip to the alternator bat terminal or the s terminals the set comes