The Professional Range of blades and handles are produced with Craft 'Professionals' and enthusiasts in mind. They are used in a variety of different industries from Mold Cutting and Jewellery Manufacture to Printing and Artwork. The No.4 handle is available for use with the larger (No.4) fitment blades. Sturdier and longer than the No.3 Handle, This Scalpel is ideally suited to Heavier modelling work. (Caution! Extremely sharp blades. Not suitable for children!)