But most important is to use a good drill bit n 4 the jigsaw, u must use a good blade. The jig saw or the drill itself you can use a cheap wan, but the drill bit n saw blade is the critical part. Don skim on it.

The chopping is only about a few tenths of ringgit saw. But using the chopping saw will produce ugly edges of the hole, need alot of finishing to make to accepatable