The customer for this process is Automotive Axles Limited. The input material used is a turned blank, which undergoes the hobbing process to produce the desired spline profile. The operation is performed using BBC Colman Hobbing and Cooper Hobbing machines, ensuring precision and consistency in the spline formation. The critical parameter in this process is the spline diameter, which must be maintained within a tolerance of +0.03 mm to meet dimensional accuracy and functional requirements. Additionally, as part of the customer-specific requirements, thread protection is ensured by using a thread sleeve, safeguarding the threads from potential damage during handling and subsequent operations.