1" x 2" shank. High grade alloy. No knife plates required.

Titan / Blue-Jet 1-1/4" square coil shank. High grade alloy. For 4" x 6" toolbars. No knife plates required.

Wako manufactured 26" Krause chisel shank. High grade 5160 spring steel. 
                         30" and 32" chisel shanks also available.