What Is a Socket Bit?
A socket bit is a tool designed for use with power drills and impact drivers. These bits come in various shapes and sizes to fit different types of power tools and are attached to the end of the rotating shaft of the tool for versatile applications.
Uses of Socket Bits
Socket bits are utilized in a wide range of power tools, including power drills, impact drivers, socket wrenches, and manual screwdrivers. Their applications extend from DIY projects to small-scale store renovations and large-scale construction work on commercial buildings.
Principle of Socket Bits
Socket bits are joined to the power tool by inserting them into the rotating shaft. Most socket bits are hexagonal, and there are several sizes for different tools. For instance, 5 mm, 6.35 mm, and 8 mm are common sizes for electric and air screwdrivers, while smaller electric screwdrivers may use 4 or 5 mm diagonals.
Other Information on Socket Bits
1. Standards of Socket Bits
There are two primary types of socket bits: A-type and B-type, differing in length from the groove to the tip. Domestic electric screwdrivers typically use B-type bits.
2. Heat Treatment Hardness of Socket Bits
Socket bits are classified into five hardness levels based on their intended use. The categories range from S and E (lowest hardness) to X (highest hardness), each suited for specific applications like high-impact tools, tapping screws, wood screws, self-drilling screws, and precision small screws.
3. Types of Hexagonal Socket Bits
Hexagon socket bits, used for fastening hexagonal bolts, come in various types:
- Shaft Press-fit Type: These bits have separate hexagonal sockets and shaft parts and are mainly used in building equipment applications.
- Integral Molded Bits: One-piece design with high rigidity, suitable for small-diameter bolts and torque-controlled fastening, but prone to breakage due to stress concentration.
- Bit Interchangeable Type: Featuring replaceable hexagonal shafts, these bits are durable but larger and heavier due to their replacement structure.
- Socket adapters: Conversion adapters are used to connect hexagonal socket bits to square-shaped impact wrenches or socket wrenches with hexagonal holes, such as impact drivers. They are best used temporarily due to increased backlash from multiple joints.