I have got a BOSCH holesaw set.
8 Piece Set. Progressive laser-cut tooth geometry capable of cutting into most plastics, wood and metals, including stainless steel. 8% Cobalt Alloy for longer life.
20, 25, 32, 38, 51, 64mm Bosch progressor holesaws, hex arbor, HSS pilot drill bit and plastic carry case.
I then also brought 2 extra sizes, 70mm & 84mm and managed to still fit them in this little case.
Excellent and very strong.