Wiha Tools 32270 Insulated Nut Driver 3/8 in 5.0 in Shank

Insulated 3/8 inch Nut Driver

The Wiha Tools 32270 is an insulated hand nut driver designed for electrical work where live circuits may be encountered. Its 3/8 inch tip fits SAE fasteners and the solid round shank extends 5.0 inches to reach recessed hardware. The yellow and red finish provides clear visual identification on a busy job site.

Insulation Limits and Fastener Fit

The tool carries a Proposition 65 warning for cancer and reproductive harm, so users must follow safe handling practices. It is rated for the bolt clearance of 5/16 inch and a fastener size of 19/50 inch, meaning it will not engage larger or smaller hardware. The shank is not magnetized and offers no fastener holding feature, so screws must be guided by hand.

Solid Shank Build and Daily Use

A solid round shank resists flex when torque is applied, while the insulated coating protects against accidental contact with energised parts. The absence of a magnetic tip reduces the risk of attracting metal debris inside panels. Red and yellow colour coding allows quick selection from a mixed tool pouch without reading fine markings.