On supporting science journalism
If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.
WHEN a small screw is to be filed down to shorten it, it is not advisable to put it in a vise for fear of damaging the threads. A small piece of soft iron may be bent and drilled in the manner shown in the illustration, and then screwed or nailed to the bench .top with the screw in the position shown.