G22-67 G2267 Hajek Septum Chisel 6" Large "V" Shaped 8mm Cutting Edge Tip G22-66 G2266 Hajek Septum Chisel 6" Medium "V" Shaped 6mm Cutting Edge Tip G22-65 G2265 Hajek Septum Chisel 6" Small "V" Shaped 4mm Cutting Edge Tip