Testors Pin Vise is nickel-plated and features two tempered-steel, reversible chucks(four opening diameters). The durable Model Master Pin Vise can be used wherever small holes or openings are required, e.g. exhaust pipes, gun barrels, mounting, and for many other fine detailing and scratchbuilding operations. Includes 6 bits. Vise holds bits up to 2.5mm.