STRIKE-ARC TIG TORCH TRIGGER TYPE WP -17 4M A Specific Type Of Tig Welding Torch; It Features A Built-In Trigger Mechanism That Allows The Operator To Control The Flow Of Shielding Gas And Initiate The Welding Arc. Replacement torch for SA160TIGMMA welder.The Wp-17 4M Torch Has A 4-Meter Length; Providing Flexibility And Reach For Various Welding Applications; It Serves As The Primary Tool For Tig Welding; Delivering The Electrode; Shielding Gas; And Controlling The Welding Current To Achieve Hight Quality Weld; Replacement torch for SA160TIGMMA welder.