So you want to take out the can opener
Is there a particular reason you want only the bit driver in the handle? Is it for bit storage or do you have another purpose in mind
Not sure how to answer your question without the motive perhaps
you can use washers to fill the gap in but unless you take another LM apart I don't know where you would get the parts, or just cut the can opener part off and leave the pivot in as a washer
any way you go, good luck