Screwdriver bit set Bosch 3 pcs — security hex 2.5 mm, length 25 mm, 1/4 inch shank

Bosch 3-piece screwdriver bit set with security hex 2.5 mm tips provides a compact selection of tamper-resistant bits for use with standard 1/4" (6.35 mm) bit holders and drivers. Each bit measures 25 mm in length, offering a balance of access and control for fastening tasks where a security hex interface is required. The set is intended for professional and DIY users who need reliable fit and repeatable engagement with security hex fasteners used in electronics, appliances, and mechanical assemblies.

Advantages

The bits are manufactured to Bosch quality standards for consistent geometry and durable tip hardness, ensuring secure engagement with tamper-resistant hex fasteners and reduced risk of cam-out. The 25 mm length provides good reach while remaining stable in quick-change chucks and manual handles. Compatibility with the standard 1/4" shank format makes these bits interchangeable with most bit holders and impact drivers designed for 6.35 mm shanks. The small kit format is convenient to carry and store alongside other tool sets.

Suitable for

Key specifications

How to use

Select the 2.5 mm security hex bit and insert the 1/4" shank into a compatible bit holder, manual screwdriver handle, or power driver. Align the security hex tip with the tamper-resistant fastener and apply steady axial pressure while turning to engage the fastener head. For power drivers, use controlled speed and moderate torque to avoid damaging the fastener or the bit tip. After use, store the bits in their case or a designated bit organizer to protect the tips from wear and to maintain readiness for future tasks.

Recommendations

Use the bits with drivers and holders rated for the intended torque range; avoid excessive force or improper angles that can deform the security hex tip. For repetitive or high-torque applications, consider using bits specifically rated for impact use and inspect tips regularly for wear. Keep bits clean and free of debris to ensure reliable engagement with tamper-resistant fasteners.