Can punch through more than 20 sheets of thick paper.

But still better than the one I was using that only punched 4 sheets.

Definitely does NOT punch 40 sheets.

Easily punches 40 sheets

I chose this particular hole punch as I could punch multiple sheets at one time.

Very easy to use and takes a lot of paper without needing too much force to punch the sheets.

This works well to punch up to fifteen sheets if you have the strength in your hand to push it.

Works great- handles 40 sheets, but you have to be gentle with it at full capacity; a couple of up-and-down pushes and it goes right through.

It can very easily punch 40 sheets, which is a big plus.

It handles 30 sheets reasonably well but punched hole quality and ease of operation are much better at 20 sheets, my recommended capacity.

It handles 30 sheets reasonably well but punched hole quality and ease of operation are much better at 20 sheets, my recommended capacity.