Drilling practice and jig design a treatise coveringcomprehensively drilling and tapping operations, and the design of drill jigs and fixtures for interchangeable manufacture This book, "Drilling practice and jig design a treatise coveringcomprehensively drilling and tapping operations, and the design of drill jigs and fixtures for interchangeable manufacture", by Erik Oberg, is a replication of a book originally published before 1915. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.