GEARWRENCH's 20pc Screwdriver kit is ideal for electrical connections needing torque load. 10 to 50 In/lb range. Not insulated for electric shock. Comes with 7 long nut drivers 1/4 to 1/2. Includes (4) Phillips® bits #1 & #2 , (4) slotted bits 1/4 & 3/16 , (4) square drive bits #1 & #2. Blow mold case included.