How much does a hole cost?

Material

Group 1
Aluminium, Aluminium Bronze, ST52, 2541, 4130, 420M, 4140, 4145, 8630

Group 2
Duplex, 316L, 165M, 17/4 PH

Group 3
Super dupex, NON MAG, F22, Super 13% CR 95KSl, Super 13% Cr 110ksi

Group 4
INC 625, INC 718, INC 925, INC 945, Titanium Gr2, Titanium Gr5