Tube Cutting Jig - SFC Tools - 53-186 This tube cutting jig will help you make straight perpendicular cuts in wire, tube, and round stock. It holds and cuts pieces up to 3/8" (9.0 mm) in diameter. It can help cut uniform pieces from 3/32" (2.4mm) to 3.125" (79.4mm) in length. Overall dimensions: 4.75 x 3.75 x 2" (12.1 x 9.5 x 5.1 cm)