Irwin IWAF342516 Magnetic Nutsetter Bit 5/16 in Hex

Product Description

The IRWIN IWAF342516 is a magnetic nutsetter bit designed for use with power screwdrivers, impact drivers, and drill drivers equipped with a 1/4-inch hex quick-change chuck. The 5/16-inch hex drive end seats hex-head fasteners and sheet metal screws securely, while the integrated magnet holds the fastener during placement — a practical advantage when working in tight spaces or on vertical surfaces. At 1-7/8 inches overall length, this is a compact bit suited for standard-depth access. Electricians, HVAC technicians, plumbers, and general trade contractors who regularly drive hex-head sheet metal screws, machine bolts, and self-tapping fasteners keep these in regular rotation.

This nutsetter is well-suited for residential and light commercial applications where 5/16-inch hex fasteners are common — including ductwork assembly, electrical panel work, equipment mounting, and general mechanical fastening. The 1-7/8-inch OAL fits standard bit holders and quick-change extensions without modification. It is sold individually, making it a straightforward direct replacement or addition to an existing bit set.

Key Features

• Magnetic tip retains 5/16-inch hex fasteners during placement and driving
• 1/4-inch hex shank is compatible with all standard quick-change bit holders and chucks
• Compact 1-7/8-inch overall length fits into confined spaces without requiring an extension
• Designed for use with power screwdrivers, drill drivers, and impact drivers
• Sold as a single unit for direct replacement or supplemental stock

Compatibility

Compatible with any power tool or manual bit holder accepting a standard 1/4-inch hex shank. Designed for use with 5/16-inch hex-head fasteners including sheet metal screws, machine bolts, and self-tapping screws commonly used in HVAC, electrical, and mechanical trade applications.

Installation Notes

Insert the 1/4-inch hex shank fully into the bit holder or quick-change chuck before operation to ensure positive seating. When driving into sheet metal or thin-gauge material, use appropriate speed and torque settings on the driver to avoid fastener over-drive or material distortion. Inspect the magnetic tip periodically for debris or metal shavings that may reduce holding strength. No special tools or trade licensing are required for bit replacement.