1-1/8" Max. Super Mini Tubing Cutter The #124 Super Mini Tubing Cutter can slice through copper, aluminum, brass, thin-wall tubing and stainless steel. Features: Wide, hardened, flared, grooved rollers allow cuts close to a flared end to avoid tube replacement in existing installations Large fluted knob increases applied torque Full-size wheel is made of bearing tool steel and replaceable (#RW121/2) Tubing O.D. range: 1/8 to 1-1/8 in. Swing radius: 1-11/16 in.