DSM INC. - Precision Machine Shop - Producing custom high-volume parts for your products DSM INC,precision screw machine,Centerless Grinders,appliances,electric motors,printers,automotive furniture,hydraulic-air,Bluegrass,Davenports,Conomatics,Acme Gridleys,Hunter Fan,ISO 9000 DSM INC. is a precision screw machine facility dedicated to producing the highest quality custom machine parts in the world. With more than 45 screw machines having capacities up to 2-5/8”, centerless grinders and other second-operation equipment, DSM INC. can be your best resource for high-volume part runs.