White-Rodgers is a new client for our company developed in Jan.,2022.One of the part named cover,part No. is 00168727,has been successfully trial-produced today.The smallest hole diameter of this part is φ0.062'',the related experience is lacking for us,in the beginning the drilling tools break off frequently.Then, we consulted with the experienced suppliers and finally solved the problem.This product has air leakage test requirements,both the process requirements of die casting and the die casting die requirements are very high.