SYSTEM FOR EXPANDING HIGH TEMPERATURE COPPER PIPES MAINTAINS COPPER MALLEABILITY DURING THE WHOLE PROCESS - NO BREAKAGE OR LOSS - IDEAL DEPTH, PREVENTS MICRO BREAKS DUE TO EFFORT AND VIBRATIONS - SIMPLE TO BRAZE. USABLE WITH SCREWDRIVERS AND DRILLS- POWER SUPPLY 230V - 1800 RPM AND MINIMUM 500W POWER