This breakthrough precision knife purposefully designed to achieve unsurpassed comfort, precision and ease-of-use by supporting the natural position of the hand and fingers. The ergonomic handle designed in-house by General's engineering team is ideal for professionals, DIYers and hobbyists performing precision woodworking, graphic design, wallpapering, carpeting and other tasks. Its design reduces user fatigue and enables more precise, more powerful cuts on a myriad of materials from paper, cardboard and wood to plastics, leather, sheeting and more. Heavy-duty locking screw chuck holds blades securely in place. Nothing else looks like it; nothing else feels like it.