Screwdriver bit set Top Tools TOP-39D377 — 40 pieces Torx bits

Top Tools screwdriver bit set TOP-39D377 includes 40 Torx bits designed for driving and removing Torx fasteners. The set covers a range of commonly used Torx sizes to meet requirements in assembly, repair and maintenance tasks. Bits are supplied in a compact, organized holder that fits standard bit holders, manual screwdrivers with interchangeable bits and powered drivers, offering a practical solution for workshop, home and professional environments.

Advantages

The Top Tools 40-piece Torx bit set provides a wide size selection in a single kit, reducing the need to switch between individual bits. Bits are manufactured to maintain precise tip geometry for reliable engagement with Torx fasteners and to reduce cam-out. The holder keeps bits organized and accessible, while compatibility with standard bit holders and powered drivers ensures versatile use across different tools and work situations.

Suitable for

• Mechanical assembly and disassembly where Torx fasteners are used
• Repair and maintenance of electronics, appliances and automotive components
• General home improvement and furniture assembly
• Workshop and professional service tasks requiring a range of Torx sizes

Key specifications

• Number of pieces: 40 Torx bits
• Bit type: Torx (star) geometry
• Compatibility: standard 1/4" hex bit holders, manual bit drivers and powered drivers
• Storage: compact plastic bit holder with labeled positions for organized storage
• Typical applications: fastening and loosening Torx screws in metal and plastic assemblies

How to use

Select the Torx bit that matches the fastener size and insert it securely into a compatible 1/4" hex bit holder, manual interchangeable-handle screwdriver or power driver. Align the bit with the Torx recess and apply steady pressure while turning to engage the fastener. For powered drivers, set an appropriate torque or clutch setting to avoid over-tightening. Return bits to the holder after use to maintain organization and protect tip geometry.

Usage recommendations

Use the correct Torx size to prevent fastener damage and extend bit life. When working with small or delicate components, use a manual driver to control torque. Inspect bits regularly for wear and replace damaged bits to maintain secure engagement and reduce the risk of cam-out.