Ideal for thin walled hard and soft copper, aluminium, brass and plastic tubes. Cuts tubing 1/8″ to 1-3/4″O. D. Lightweight yet very durable magnesium body. Feeding screw made of steel. No tool required for instant wheel change. 4 rollers for better grip of the metal tube being cut. Removable reamer. Ergonomic knob. Spare cutting wheel inside the knob. .