3-19mm Cutting for copper, aluminum tube and other thin tube . Alloy steel cutting wheel pieces,tube cutter stays the same length for use in restrictod area . Flaring tool metric sizes: 3/5/16/19/6/8/10/12/14/15mm . Widely used in refrigeration, petrochemical, power, shipbuilding, metallurgical and other industries of the condenser, coolers, heat exchangers, boilers and other pressure vessel manufacturing and maintenance . Can be used copper, aluminum, titanium, iron, stainless steel and other materials for the expansion of the tube . Package Contents: 8pcs Tube cutter flaring tool Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.