WGCSUN0428B aka 6788447 is a 2 1/4″ Bar Capacity size 4 insert blade for the 2 1/4″ Bar Capacity .156-.192″ Width of Cut Separator to WGC single end Cutoff/Grooving and Profiling inserts USE with 6788450 RH CLAMP. This replaces the 435-102 aka 3539826 clamps and 310108 3539440 support blades.