Wiha 70474 Magnetic Nutsetter 3/8 Inch Hex Steel Bit

Product Description

The WIHA 70474 is a magnetic nutsetter bit designed for use with power screwdrivers and impact-rated drivers in trade and industrial applications. Built from steel, this bit features a 3/8 inch hex drive size and measures 2.5 inches in overall length. The magnetic tip holds fasteners securely during driving, reducing dropped hardware in overhead, tight-access, or high-volume installation work. At 0.08 pounds, it is a lightweight single-piece bit suited for electricians, HVAC technicians, and plumbers who regularly drive hex-head fasteners in equipment panels, junction boxes, ductwork, and fixture mounting.

This nutsetter is appropriate for residential and light commercial applications where 3/8 inch hex fasteners are standard. Typical install scenarios include securing electrical panel knockouts, HVAC access panel hardware, plumbing fixture mounting bolts, and similar fastener-heavy tasks. The 2.5 inch overall length provides enough reach for recessed fastener locations without excessive wobble on a standard power driver chuck.

Key Features

• Magnetic tip retains 3/8 inch hex fasteners during driving
• 3/8 inch hex drive size for nutsetting applications
• 2.5 inch overall length for reach into recessed locations
• Steel construction for durability under power driver torque loads
• Lightweight at 0.08 pounds — single-piece design with no moving parts

Compatibility

Designed as a standard power screwdriver bit compatible with 1/4 inch hex-shank power driver chucks commonly found on cordless drills, impact drivers, and dedicated power screwdrivers that accept 1/4 inch hex bit shanks.

Installation Notes

Installation is performed by electricians, HVAC technicians, plumbers, and general trade professionals using cordless or corded power drivers. Ensure the bit is fully seated in the driver chuck before applying power to avoid cam-out or bit ejection. Always de-energize electrical equipment and isolate systems before driving fasteners on or near live components. Inspect the bit for wear or deformation before use, as a damaged nutsetter can strip fastener heads or slip under load.