This 9 piece set features an assortment of popular nut driver sizes. Each are individually tested to exceed the IEC 60900 and ASTM F1505 standards for insulated tools. The highly durable, black nylon case features a zipper closure, custom-fitted tool pockets plus an extra pocket for storage of papers and other items. Made in the USA.
Unit of Measure



N/A Klein®


N/A Insulated Nut Driver Set

UPC Code

N/A 92644335242


N/A 27111702


N/A Standard

Handle Material

N/A Nylon

Number of Pieces

N/A 9

Insulation Type

N/A Insulated

Shank Type

N/A Round


N/A 646-3/16-INS, 646-1/4-INS, 646-5/16-INS, 646-11/32-INS, 646-3/8-INS, 646-7/16-INS, 646-1/2-INS, 646-9/16-INS, 646-5/8-INS, 33534

Industry Standards/Certifications

N/A International Electrotechnical Commission (IEC) 60900: 2012 and American Society for Testing and Materials (ASTM) F1505-10


N/A 2.7 kg6.0 lb


Overall Length

N/A 9-3/4 to 11-3/8 in247.7 to 288.9 mm

Overall Height

N/A 3-1/2 in88.9 mm

Overall Width

N/A 15 in381.0 mm

Shaft Length

N/A 6 in



N/A Stacked Circuit Boards, Long Bolt Applications



  • "Set includes 3/16,'' 1/4'', 5/16'', 11/32'', 3/8'', 7/16'', 1/2'', 9/16'' and 5/8'' nut drivers"
  • Full hollow shafts facilitate work on long bolt applications
  • "Durable, two-layer, molded insulation protects against electric shock"
  • Tip-Ident® quickly identifies nut driver and size
  • "Highly durable, black, nylon case features custom-fitted tool pockets"
  • Replacement case available (Cat. No. 33534)
  • "Meets or exceeds IEC 60900: 2012, ASTM F1505-10 standards for insulated tools"
  • "Only use tools that are marked with the official international 1000-volt rating symbol shown above, if there is any chance that the tools will make contact with an energized source."
  • "Whenever possible, always de-energize lines and equipment prior to working on or around them. Klein® insulated tools are designed only to reduce the chance of injury where the tool may make contact with an energized source."
  • Do NOT touch uninsulated portion of the tool or any conductive object when either might contact an energized source.
  • "Because moisture, films, or other surface contaminants are conductive, Klein® insulated tools must be kept clean, dry, and free of any surface contaminants."
  • Always inspect your tools before use. Destroy tool if insulation becomes damaged in any way.