Pack of 5 BOC Gas Saver Alumina TIG Cup to Suit 17, 18, 26 Series Torch
 
The unique BOC design gas saver kits ensure complete gas coverage of the TIG tungsten even on an extended stick out.
Gas saver kits eliminate excessive turbulence in the gas flow that could lead to air entrapment in the weld bead. Saves your gas and offers better a welded finish.
The purpose of the gas lens is to make the shielding gas exit the nozzle as a column instead of a turbulent stream of gas that begins to spread out after exiting.
The column of gas allows the electrode to stick out farther for visibility allowing for better access to the weld area and a reduction in gas flow.