Cuts wire without pinching - capable of cutting multiple wires at the same time; ranging from 0.0 mm to 1.50 mm AWG 40 to 16 Gauge. It is designed to keep a keen edge on your graver. The graver is placed in either of the two angled openings, and roller over a flat oilstone to sharpen (not included). Measures 2-1/8" x 1-3/8". Please contact us with any questions. Thanks for looking!