and soft grades of Sheet Metal

1-1/4 (32mm), 

1-1/2 (38mm), 

1-3/4 (44mm), 

2 (51mm), 

2-1/4 (57mm) & 

2-1/2 (63mm) Inch

This is a very good hole saw kit. I used this kit to cut a hole in an outside Metal electric box and it did it fast and the saw blade is still sharp.
  Cut smooth, clean, accurate holes contains 8 cutting blades Cut holes for doors, in counter tops and any hobby that needs a perfectly round hole! This kit is brand new and comes in a molded storage case.