Description
Product Overview
Klein Tools 5/16-Inch nut driver bits are engineered for professional and DIY use, crafted from S2 impact-rated alloy steel to withstand high-torque applications. Each bit features a brushed finish, hex shank design, and a strong magnet to prevent nut slippage. With a length of 2.65 inches and a cutting diameter of 0.43 inches, these bits are compatible with power impact drivers using 5/16-inch hex nuts. The set includes three color-coded bits following ASME standards for easy identification, ensuring efficient workflow in various tasks.

Usage
These nut driver bits are ideal for electricians, mechanics, and home improvement enthusiasts working in confined spaces like electrical boxes, control panels, or automotive assemblies. They excel in applications requiring secure fastening of nuts in hard-to-reach areas, such as installing conduit fittings, machinery components, or HVAC systems. The impact-rated design makes them suitable for use with cordless impact drivers, providing reliable performance in construction, maintenance, and repair projects.
Why Choose Us
Klein Tools nut driver bits stand out due to their robust S2 steel construction, which resists wear and extends tool life under heavy use. The hex pockets are minimally chamfered to maximize surface contact with nuts, reducing stripping and improving torque transfer. Backed by a 1-year manufacturer warranty, these bits offer peace of mind and are part of a trusted brand known for quality and innovation in the tools industry.
Key Features
- Impact-rated S2 steel for maximum durability and longevity
- Strong magnet securely holds nuts during operation
- Longer 2.65-inch design for easy access into boxes and panels
- Color-coded bits per ASME standards for quick identification
- Minimal chamfering on hex pockets enhances nut contact and torque
FAQ
What types of drivers are compatible with these bits?
These bits are designed for power impact drivers with a 5/16-inch hex nut system, ensuring a secure fit and efficient power transfer.
Are these bits suitable for professional use?
Yes, they are impact-rated and made from high-quality S2 steel, making them reliable for demanding professional applications in construction and electrical work.
How many bits are included in the set?
The set includes three identical 5/16-inch nut driver bits, providing spares for convenience or use across multiple job sites.
What is the warranty coverage?
Klein Tools offers a 1-year manufacturer warranty, protecting against defects in materials and workmanship under normal use conditions.
Can these bits be used in tight spaces?
Absolutely, the 2.65-inch length allows them to reach into confined areas like electrical boxes and panels without compromising performance.




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