Detail
 
 
Easy operation, save time and energy.

The special cone eccentric revolution will be allows the internal opening gradually and form 45~ accurate and regular flare without, preventing tube slippage downward. Therefore, the flare face will be smooth, uniform without scratching.

Eccentric cone will be rebound by itself after the work is finished,make the idle top head in revolution again for 1-2 rounds and have the flare face in friction to make it prettier.