Screwdriver Bit Makita E-03349 2 pcs T20 1/4 Security Hex 50 mm

The Makita E-03349 screwdriver bit set contains two 50 mm bits: one T20 Torx and one 1/4" security hex. Each bit is manufactured to fit standard 1/4" quick-change chucks and screwdriver holders, providing a compact length suitable for recessed fasteners and controlled torque applications. The set is intended for general fastening tasks where a combination of Torx and security hex access is required.

Advantages

Both 50 mm bits are made to offer consistent fit and reliable engagement with screw heads, reducing cam-out and wear during repeated use. The combination of a Torx T20 and a security hex increases versatility across common fastening scenarios. The standardized 1/4" drive interface ensures compatibility with a wide range of manual and powered drivers.

Suitable for

• Assembly and disassembly of household and electronic devices with Torx T20 fasteners
• Maintenance tasks requiring a security hex bit for tamper-resistant screws
• Use in compact or recessed areas where a 50 mm length provides better access control
• General workshop and professional fastening where a reliable 1/4" bit interface is needed

Key specifications

• Set quantity: 2 pieces
• Tip types: T20 Torx, 1/4" security hex
• Bit length: 50 mm each
• Drive interface: 1/4" (6.35 mm) hex shank
• Material and finish: engineered for durability and precision (manufacturer common-grade steel)

How to use

Select the appropriate bit (T20 or security hex) and insert it securely into a compatible 1/4" driver, impact driver, or quick-change chuck. Ensure the bit is fully seated and locked before applying torque. Use steady pressure and the correct rotational speed for the screw type; reduce speed and torque when starting screws or when working in soft materials to avoid stripping. For tamper-resistant screws, align the security bit straight with the screw to engage the recess before applying turning force.

Usage recommendations

Inspect bits regularly for signs of wear or rounding; replace bits that show deformation to maintain fastening quality and avoid damage to screw heads. Match the bit tip precisely to the screw profile and avoid excessive lateral force. Store the bits in a dry, protected case to prevent corrosion and maintain tip geometry.