Klein Tools 33524 Insulated Nut Driver Set 9 Pc

Product Description

The KLEIN TOOLS 33524 is a 9-piece insulated nut driver set built for electricians and trade professionals working on energized or potentially energized equipment. The set covers nine common drive sizes from 3/16 to 5/8 inches, each on a 6-inch hollow shaft that accommodates long bolts and threaded rod without bottoming out. Durable two-layer molded insulation on every driver meets ASTM F1505-10 and IEC 60900:2012 standards, providing protection against electric shock during low-voltage service work. Cushion grip handles deliver comfort and control during extended use.

This set is suited for residential and commercial electrical work, panel wiring, control cabinet assembly, and HVAC equipment service where hex-head fasteners are common. The hollow shaft design is particularly useful when driving nuts onto long machine screws or threaded studs. The set ships in a carrying case that keeps all nine drivers organized and ready for field use. Typical installers include licensed electricians, HVAC technicians, and industrial maintenance professionals.

Key Features

• Nine drive sizes: 3/16, 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, and 5/8 inches
• 6-inch hollow shaft on each driver accommodates long bolts and threaded rod
• Two-layer molded insulation rated to ASTM F1505-10 and IEC 60900:2012
• Cushion grip handle for comfort and torque control
• Includes carrying case for storage and transport
• Inch measurement system; full 9-piece set in a single kit

Compatibility

Designed as a general-purpose insulated nut driver set for use with standard inch-sized hex fasteners across electrical, HVAC, and industrial applications.

Installation Notes

Insulated nut drivers should be inspected before each use for cracks, cuts, or damage to the insulation layer — damaged insulation voids shock-protection ratings. Even with rated insulated tools, follow NFPA 70E arc flash and shock hazard protocols before working on or near energized equipment. Store drivers in the included case to protect the insulation from physical damage.