The customer for this process is Automotive Axles Limited. The input material used is a turned blank, which undergoes a series of precision machining operations including hobbing, spline rolling, and keyway milling to achieve the required spline and keyway profiles. The operations are carried out using advanced equipment such as the Pfauter Big Hobbing machine, MTS Spline Roller, and Jyothi Milling machine, ensuring high accuracy and consistency in the finished components. The critical parameters for this process are the hob diameter and spline diameter, both of which must be maintained within a tight tolerance of ±0.03 mm to ensure dimensional accuracy and functional reliability. Furthermore, in accordance with customer-specific requirements, thread protection is ensured by using a thread sleeve, which safeguards the threads from potential damage during handling and subsequent manufacturing operations.