• Made of high-quality K5 alloy, it's anti-scratch, impact-resistant and durable
• This set can be used on high strength working situations
• Perfectly fit for most hand screwdrivers, electric screwdrivers, electric drills, etc
• Suitable for most industrial use

Note:

• Due to variations in production batches, the total length of the product may have slight discrepancies, typically within a range of 10 to 15 threads. However, this does not affect its functionality or usability