The edges are often Chamfered or the angles ornamented with slender shafts.
"Our Homeland Churches and How to Study Them"
Sidney Heath
The two central sleepers have their outside edge roughly Chamfered.
"The Care of Books"
John Willis Clark
The bore of A is threaded and fluted to provide cutting teeth, and the threads are Chamfered off at the mouth to assist the cutting by spreading it over several teeth, which enables the bolt to enter the die more easily.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose