Nutsetter bits Bosch Extra Hard 50 mm, metal, drive 1/4" (6.3 mm)

Bosch Extra Hard Nutsetter bits, 50 mm length with a 1/4" (6.3 mm) hex drive, are designed for driving and fastening nuts and threaded inserts using screwdrivers and cordless drills. Constructed from S2 modified steel and processed with an optimized heat treatment, these nutsetters offer extra-hard material properties for reliable performance in metalworking, construction and general repair tasks. A permanent magnet in the tip holds fasteners in place to reduce slippage during use.

Advantages

The S2 modified steel and optimized heat treatment provide an extra-hard surface that resists wear and delivers consistent torque transfer. The 50 mm length offers good reach in recessed or partially obstructed fastenings, while the integrated permanent magnet secures screws and nuts for easier one-handed operation with power drivers.

Suitable for

• Driving and fastening nuts and threaded inserts with power screwdrivers and cordless drills
• Assembly and maintenance tasks in metalworking and construction
• General household repairs where a 1/4" (6.3 mm) hex drive nutsetter is needed

When it may not be suitable

These nutsetter bits are intended for standard fastening tasks and occasional heavy use, but they are not designed as a replacement for dedicated impact-rated sockets or tools engineered for high-impact, industrial torque applications. Avoid using them with impact wrenches or in situations requiring certified torque calibration.

Key specifications

• Material: S2 modified steel with optimized heat treatment (extra-hard)
• Length: 50 mm
• Drive: 1/4" (6.3 mm) hex
• Tip feature: permanent magnet for holding fasteners
• Suitable fastener types: nuts and threaded inserts

How to use

Insert the 1/4" hex drive into the chuck or bit holder of a screwdriver or cordless drill, position the nutsetter over the nut or threaded insert, and apply steady pressure while driving at an appropriate speed. The permanent magnet will retain the fastener; if needed, align the bit and fastener manually before applying power. Inspect the bit for wear and replace if the tip becomes rounded or damaged.

What to consider before purchase

• Verify the required drive size (1/4" / 6.3 mm) matches your tool
• Confirm the nut size and type are compatible with the nutsetter length and tip design
• Avoid using these bits with impact wrenches unless specified by the tool manufacturer

Usage recommendations

Use with cordless drills or power screwdrivers at moderate speeds and consistent pressure; store bits dry to prevent corrosion and replace them when the tip shows visible wear to maintain secure fastening performance.