G22-61 G2261 Cottle Septum Chisel 7" Straight 12mm Graduated G22-60 G2260 Cottle Septum Chisel 7" Straight 9mm Graduated G22-59 G2259 Cottle Septum Chisel 7" Straight 7mm Graduated G22-58 G2258 Cottle Septum Chisel 7" Straight 4mm Graduated