Screwdriver Bit Makita B-63812 2 pcs Torx T40 50 mm

The Makita B-63812 screwdriver bit set includes two Torx T40 bits with a length of 50 mm. Designed for precision fastening, these bits fit standard 1/4" hex chucks and manual bit holders used with electric screwdrivers, impact drivers, and cordless drills. The 50 mm length provides improved reach for recessed fasteners while maintaining control and stability during installation and removal.

Advantages

These Torx T40 bits are manufactured to deliver consistent tip geometry for secure engagement with fasteners, reducing cam-out and wear. The 50 mm shank length balances accessibility and control, and the hardened steel construction provides resistance to deformation under torque. Supplied as a set of two, they offer quick replacement on the job and reduce downtime when one bit becomes worn.

Suitable for

• Assembly and disassembly of machinery and equipment using Torx T40 fasteners
• Furniture construction and carpentry tasks requiring deeper screw access
• Automotive interior and bodywork where T40 screws are specified
• Professional and DIY projects with power drivers or manual bit sockets

Key specifications

• Tip type: Torx T40
• Quantity: 2 pieces
• Length: 50 mm
• Drive interface: 1/4" hex compatible
• Material: hardened tool steel

How to use

Select the Torx T40 bit and insert its 1/4" hex shank into the driver chuck or bit holder until it locks. Align the bit with the fastener, apply steady axial pressure to keep the tip engaged, and operate the driver at appropriate speed and torque for the material. Replace the bit with the spare when signs of rounding or wear appear to maintain fastening quality.

Usage recommendations

For best results, use the bits with drivers that allow torque control to avoid over-stressing the bit and fastener. Inspect bits regularly for tip wear and avoid using damaged bits on hardened fasteners. Store bits in a protective case to prevent corrosion and maintain tip accuracy.