Comparison : Item # 8602-22, Inner Replacement, 180º, 29/42 Joint
Item # 8602-24, Inner Replacement, 180º, 34/45 Joint
Item # 8602-26, Inner Replacement, 180º, 40/50 Joint
Item # 8602-28, Inner Replacement, 180º, 45/50 Joint
Item # 8602-30, Inner Replacement, 180º, 50/50 Joint