Screwdriver Bit Topex 39D340 Drive Size 1/4" Weight 89 g

The Topex 39D340 screwdriver bit set includes a driver bit holder and four bits with a 1/4" drive interface. The holder measures 65 mm in length and features a mechanism that allows bits to be installed to a desired depth. The set is designed for compatibility with standard drills and screwdrivers that accept 1/4" tips and is intended for a range of fastening tasks in both professional and DIY environments. The total weight of the set is approximately 89 g.

Advantages

The 1/4" drive provides broad compatibility with common bit chucks and quick-change adapters. The 65 mm holder length gives additional reach for recessed fasteners while maintaining control. A depth-adjustable installation mechanism secures bits at the required position to reduce wobble and improve driving accuracy. The set combines lightweight construction with durable materials suitable for repeated use.

Suitable for

• Installing and removing screws in furniture assembly
• Electrical and electronic work requiring small to medium screwdriving
• Light carpentry and joinery tasks
• General household repairs and DIY projects

Key specifications

• Drive size: 1/4"
• Holder length: 65 mm
• Set contents: driver bit holder + four bits
• Weight: approx. 89 g (total set)
• Compatibility: standard drills and screwdrivers with 1/4" tip
• Mechanism: adjustable bit installation depth

How to use

Insert the selected bit into the holder until the mechanism clicks or reaches the desired depth. Fit the holder into the chuck or quick-change adapter of a drill or screwdriver that accepts 1/4" tips. When driving screws, apply steady pressure and keep the tool aligned with the screw axis to prevent cam-out. For removal, reverse the rotation and maintain firm engagement between bit and fastener.

Usage recommendations

Use the bit set with tools rated for the screw types and sizes you are working with. Avoid excessive torque with small bits to prevent deformation. Store bits in a dry place to limit corrosion and inspect bits regularly for wear; replace any worn or damaged bits to maintain safe and reliable performance.