Fluke TL28A Heavy Duty Test Lead Set. Large jaws, long leads and a piercing probe. Solid, spring-loaded copper clips with a wide 12.7 mm (.50 inch) jaw opening and serrated teeth. Large piercing needle for penetrating larger gauge wires. 1.5 m (60 inch), silicone-insulated leads, useable from -80 degrees C to +150 degrees C (-112 degrees F to +302 degrees F). Rated for 30 V, 10 A. One red, one black. Mfg. part Fluke 1273185. Fluke parts and accessories.