Large, solid steel mandrels for making unusual shapes in ring shanks, bezels, etc. The steel is strong enough to withstand the blows form a hammer.
This triangle mandrel tapers from 27/32"x27/32" down to 13/32"x13/32" at the tip. The shape has beveled corners, giving it more of a "cushion" shape.
Overall length of this American made mandrel is approximately 12"