2220-20 Electrical Combo Kit includes four tools and four accessories for the professional electrician working residential, commercial or industrial applications. The 2217-20 Digital Multimeter is True-RMS and includes all the features that are needed to get the job done in the field, on-site or in the plant. It includes: High contrast white on black display for easy reading in all environments, CAT III 600V, up to 600V AC/DC, Lo-Z measurement to eliminate ghost voltage, frequency to 50kHz, and resistance to 40 Mohms. The 2202-20 Voltage Detector with LED is a rugged tool with the highest safety rating in the industry, CAT IV 1000V with a wide 50 to 1000 volt AC range. It has a built-in LED that lights up any work area. The 48-22-1901 Fastback Utility Knife features one handed blade opening, tool free blade changes, built-in wire stripping, and integrated gut hook to cut without opening the knife. The 48-22-2114 11 in 1 Multi-Tip Screwdriver has 10 bits and nut drivers most requested by professionals. The Milwaukee ECX bit (patent pending) has a superior fit for specialty screws. Includes electrical test lead set, dual banana thermocouple, magnetic meter holder, soft meter case, all batteries for the 2217-20 and 2202-20 and all manuals. Nothing but HEAVY DUTY.