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 |
