To meet your larger weld width specs, this Triad is built with 3″ (76mm) wedge and rollers. Smaller wedge/rollers and all attachments fit on this Triad..滿您的更大的焊縫寬度格是社會3”76mm和楔。小楔/和所有的件放在..#33-025: 120V, 3″ Wedge (76mm).# 33-025120V3“楔76mm。#33-050: 240V, 76mm Wedge (3″)# 33-050240V76mm楔3“