A special and cost effective plastic tool for S type spear/inner bag, to manually disassemble the S type spear/inner bag from the reusable kegs, and to assemble a new S type spear/inner bag on the reusable kegs.

the tool can be locked on the plastic spear, and open the gas valve of the spear to depressurize the keg prior unscrew the spear from the keg, to ensure the safety.