Small Dia = 12 ga to #8, 2.5mm to 4 mm Large Dia = #10 to 5/16", 5mm to 8 mm Great for using a template tube adaptor to ensure the correct plunge for a good weld. This will ensure you have 1/8" of the stud sticking out past the collet. Hanlon Part# Description Midwest Fasteners Proweld/Truweld BS125S 1/4" Stud - Small Diameter 101-1002-16 033-781 BS118S 3/8" Stud - Small Diameter 101-1002-17 033-782 BS100S 1/2" Stud - Small Diameter 101-1002-18 033-783 BS875S 5/8" Stud - Small Diameter 101-1002-19 033-784 BS750S 3/4" Stud - Small Diameter 101-1002-20 033-785 BS125L 1/4" Stud - Large Diameter 101-1002-01 033-770 BS118L 3/8" Stud - Large Diameter 101-1002-02 033-771 BS100L 1/2" Stud - Large Diameter 101-1002-03 033-772 BS875L 5/8" Stud - Large Diameter 101-1002-04 033-773 BS750L 3/4" Stud - Large Diameter 101-1002-05 033-774 BS625 7/8" Stud - All Diameters 101-1002-06 033-775 BS500 1" Stud - All Diameters 101-1002-07 033-776 BS375 1-1/8" Stud - All Diameters 101-1002-08 033-777 BS250 1-1/4" Stud - All Diameters 101-1002-09 033-778 BSB 1-3/8" Stud - All Diameters 101-1002-10 033-779
