The Fluke TLK-220 SureGrip Industrial Test Lead Set is for industrial applications up to 1000 V CAT III or 600 V CAT IV rated. This test lead kit includes two sizes of alligator clips (AC220 plunger style and AC285 large jaw) and TP220 sharp test probes for reliable connectors, TL224 test leads and a roomy carry case to hold and protect your meter and all of your accessories.