input: [0] Blade Nut [1] 1 [2] 1 [3] Passes through the lower blade guard, blade and upper blade guard. It acts as the central pivoting/connection point and is vital to the operation of the saw. Failure here is unacceptable. [4] Steel [5] Durability and strength. [7] Cheap and cost effective [6] 
output: Stamped out