Hex bit 6 mm Wera 840/1 IMP DC impact-resistant tool steel

Hex bit 6 mm Wera 840/1 IMP DC is a 6 mm hex bit manufactured by Wera from impact-resistant tool steel. Designed for use with impact drivers and compatible power tools, the bit delivers a precise hex profile for fastening applications. Its construction and geometry are intended to withstand high torque and repeated use while maintaining reliable engagement with screws and bolts that have 6 mm hex heads.

Advantages

The impact-resistant tool steel construction increases durability under heavy loads and reduces deformation during continuous impact-driving operations. The precise hex profile ensures secure contact with fastener heads, minimizing cam-out and wear. The compact single-bit design is convenient for quick changes and for insertion into bit holders, reducing downtime during assembly or repair tasks.

Suitable for

• Driving and removing 6 mm hex-head screws and bolts
• Use with electric or cordless impact drivers and impact-capable screwdrivers
• Automotive maintenance and repair tasks requiring high torque
• Metal and machinery assembly where repeated fastening is needed
• Construction and industrial fastening applications

Key specifications

• Tip shape: 6 mm hex profile
• Material: impact-resistant tool steel
• Intended use: impact driving and high-torque fastening
• Compatibility: standard 1/4" hex bit holders and compatible power tools
• Form factor: single compact bit for bit holders and sockets

How to use

Insert the hex bit into an appropriate 1/4" hex bit holder or the chuck of an impact driver. Ensure the bit is fully seated and locked before applying torque. Align the bit with the fastener head and apply steady pressure while engaging the impact driver. Use controlled speed and torque settings where available to avoid over-tightening. After use, inspect the bit tip for wear or rounding and replace if the hex profile shows significant deformation.

Usage recommendations

Use appropriate personal protective equipment and select the correct torque setting on the impact driver for the fastener and material. Avoid using the bit in non-impact-rated tools for prolonged high-torque tasks to prevent premature wear. Store the bit in a dry place and keep it in a holder to protect the tip shape.