The Design of Tools .. [ Calculation and design of round stretches" is a unique work created by a team of authors, which will be a real find for specialists in the field of mechanical engineering, tool production and everyone who is interested in modern methods of designing and calculating tools. This work not only enriches theoretical knowledge, but also provides practical recommendations that can be used both in the educational process and in real production activities. This book discusses in detail the main aspects of circular stretching design tools used to handle holes and create precise shapes. The authors pay attention to both theoretical foundations and practical methods, which makes the material available to a wide range of readers. The main topics that are raised in the book include the choice of materials for the manufacture of tools, the calculation of their geometry, as well as the analysis of performance characteristics. The reader will be able to learn how to approach the design correctly to ensure the durability and effectiveness of the tool. This book will be of interest not only to students and teachers of technical universities, but also to practicing engineers who seek to improve their skills and expand the horizons of knowledge in the field of tool design. It will become a useful reference for those working in the production sector, as well as for researchers engaged in new technologies in instrumental production. The age category of readers is not limited, as the book is suitable for young people just starting their way in mechanical engineering, and for experienced professionals who want to update their knowledge. The style of the authors is distinguished by the clarity and accessibility of the presentation, which makes it easy to assimilate even the most complex concepts. The book is filled with examples from practice, which makes the material more visual and understandable . The authors use modern approaches to design, which allows the reader to be aware of current trends in the field of instrumental production. This makes "Designing Tools. Calculation and design of round stretches" is not just a textbook, but a real guide to the world of modern technologies . The book also raises important topics such as innovation in materials science, sustainable production, and process optimization, making it relevant in light of the current challenges facing the industry. The reader will be able to see how theoretical knowledge is applied in practice, which inspires new ideas and developments. If you are interested in topics such as tool design, processing technology, mechanical engineering and modern production methods, then this book will become an indispensable source of information for you. In addition, it will be useful to those who are looking for literature on similar topics, such as "Basics of Tool Design" or "Metal Processing Technology", as it covers a wide range of issues related to tool design and calculation. Finally, “Designing tools . Calculation and design of round stretches" is not just a book, but a whole world of knowledge that awaits its reader. It is able to inspire and equip with new ideas necessary for successful work in the field of instrumental production. Do not miss the opportunity to immerse yourself in this fascinating and important aspect of mechanical engineering!