By Karen Christians. A flexible shaft machine is an essential tool of the bench, and jewelers will often have several at hand. However, jewelers oftentimes do not take full advantage of the flex-shaft's capabilities. This book will likely change that. It offers insights and advice on how to choose the proper system and maintain it, as well as which accessories are required to accomplish a variety of tasks. A number of tips and ideas are gleaned from the Orchid Archives and from the pages of MJSA Journal. Learn how to speed production, improve quality, and make life easier. 95 pages, soft cover.