PGM is a full service precision manufacturing corporation specializing in precision CNC machining, turning, grinding and assembly. Our volumes range from low to high with dedicated production lean cells for single piece flow to quick set up cells for families of parts or model. Our coil spring manufacturing machines can produce various types of coil springs. These coil springs are used for automobiles, trains and heavy machines. We have made the machines for wire diameter up to 100mm. Our machine performs to forming pigtail. The present invention relates to an apparatus for manufacturing a pigtail for a coil spring, which is capable of very quickly and easily manufacturing the pigtail portions of all types of pigtail coil springs by using a single apparatus, regardless of the diameter and pitch angle of the coil. Precision centerless grinding services for steel, stainless, specialty alloys, titanium and many more. Our expertise is in turned. For 50 years PGM Corporation has been solving their customer's most challenging and complex precision machining, manufacturing and assembly needs in a full spectrum of industries. This allows our staff to. This white paper delves into the “pigtail effect's” impact on stainless steel guidewire and corewire manufacturing, exploring its causes, implications, and mitigation strategies, including thermal treatment and material selection, to ensure cost-effective manufacturing solutions.