drilling larger holes in aluminum

[artdutra04]

Originally Posted by James3245

And how does one achieve consistency on size of hole, if necessary, with a step drill bit?

If you are using a step drill in a hand drill and making a lot of holes, put masking or painters tape around the step drill on the width above where you want to stop at, then just stop pushing when the masking tape touches what you are drilling into.

[Ari423]

Originally Posted by artdutra04

If you are using a step drill in a hand drill and making a lot of holes, put masking or painters tape around the step drill on the width above where you want to stop at, then just stop pushing when the masking tape touches what you are drilling into.

Or just get something like this and drill all the way through.