

The fastening screw unit and the pipe are flush on the same line. With no offsets, flexure is smaller than in the offset types, even when the screws are tightened to the fullest extent.
PAT. and D. PAT.
Well-balanced handle rotation compared to the "L" type crank handle allows stable handling with little shaking.


Simple and clear-cut design with a minimum number of parts. The screw unit is integrated in the body and the user takes hold of this part, enjoying stable operations.

Least exposure of the screw unit minimizes the damage of screws from welding spatters or other harms, also keeping out the dust.

Note: Pipes are not included. Prepare black gas pipe with both ends threaded.