*Steady feeding of material by air pressure.

*Easy adjustment and maintenance of belts.

*Raise 30% ~ 40% life-time of tap than conventional tap.

*Higher efficiency, easy to change tap and can work separately by single shaft.

*Stop feeding when tap is blunt or bad bore diameter

*Air pressure cylinder pulls back automatically to ready position while detecting abnor mal operation.

*Easy to change the speed of tapping by using our air pressure cylinder.

*Economically save more power and less space requirement.