A Impact socket is a professional-grade hand tool to tighten or loosen vehicle wheel lug nuts. The cross-shaped configuration makes it possible for one to apply torque with high efficiency, thereby becoming an essential tool for car maintenance. Here we talk about its specifications, types, as well as manufacturing process.
Product Specifications
- These impact socket generally have high-strength Carbon steel or chromium-vanadium (Cr-V) forged into them. These have high tensile strength (1,000–1,200 MPa) along with resistance to deformation and wear.
Socket Sizes:
- Supplied to fit standardized imperial or metric sizes such as 8mm to 65mm
- Bambi
- Arm length is between 12–20 inches, impacting torque application.
- Weight is between 1–2.5 kg, varying according to size and material.
Torque Capability:
- These are available to counter torque values up to 300–500 Nm, applicable to passenger cars and light trucks.
Surface Finish:
- Treated with anticorrosive coatings such as
- Zinc plating,
- Chrome plating,
- Black oxide or Painted
- To add durability,
- Standards compliance
- Designed to international specifications like ISO 6789 (hand torque tools) or DIN 899 (wrenches).
Common Types
1
A fundamental four-arm structure with stationary sockets, best for overall car usage.
2
Hinged arms for handy storage space in car trunks.
3
Reinforcing the central part of spanner (on welded portion) makes it stronger for commercial vehicles or machinery, sometimes with thicker arms.
Manufacturing Process
Material selection:High-grade Carbon steel/ Chrome Vanadium Bars are selected based on strength and machinability.
Hot forging:The required lengths are cut to bars, and both ends are hot forged to form sockets using metal gathering machinery & press.CNC turning finishes socket profiles to accurate tolerances (±0.1mm).
Heat treatment:The spanner is quenched (oil/water rapid cooling) and tempered (heating to 200–400°C) to reach the best hardness (45–50 HRC). Only socket ends are heat-treated since the bars are to be welded at the center for assembling.
Surface Finishing:Electroplating (zinc/chrome) or phos-coating is done to avoid rusting as well as to give an attractive appearance. In certain applications, coloured powder coating is also applied.
Quality Control:Each unit is methodically tested for dimensional precision, torque resistance, and resistance to stress.
Packaging : generally the cross whell spanners are bulk packed. But at times there are packed alongwith hand card & color labels as well.
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