Wiha 70477 Magnetic Nutsetter 3/8 Inch Hex 6 Inch

Product Description

The WIHA 70477 is a magnetic nutsetter bit designed for use with power screwdrivers and impact-ready hex-drive tools. It features a 3/8 inch hex drive size and a 6 inch overall length, giving technicians extended reach in tight or deep fastener locations. The built-in magnetic tip holds nuts and fasteners securely during driving, reducing drop risk and improving single-handed workflow. Constructed from steel, this bit is suited for repetitive fastening tasks in electrical, HVAC, and general mechanical installation work. Electricians, HVAC installers, and mechanical contractors are the primary users of this type of accessory bit.

This nutsetter is appropriate for residential and light commercial applications where a 3/8 inch hex fastener is the target. The 6 inch length makes it a practical choice when working inside enclosures, panels, or equipment cabinets where a standard-length bit cannot reach. It is compatible with any 1/4 inch hex shank power screwdriver, drill-driver, or impact driver that accepts standard power bit accessories.

Key Features

• 3/8 inch hex drive size for matching fastener heads
• 6 inch overall length for extended reach in recessed or deep locations
• Magnetic tip retains nuts and fasteners during driving
• Steel construction for durability in power-drive applications
• Single-piece bit — no assembly required

Compatibility

Designed for use with 1/4 inch hex shank power screwdrivers, drill-drivers, and impact drivers that accept standard power screwdriver bits. Suitable for driving 3/8 inch hex fasteners in electrical, HVAC, and mechanical installation applications.

Installation Notes

Insert the 1/4 inch hex shank into the tool chuck or bit holder and confirm it is fully seated before operation. Ensure the tool is powered down or the trigger is locked before changing bits. Do not use this bit as a hand-tool driver; it is rated for power-tool use. Follow applicable NEC or job-site safety requirements when working near energized equipment.