There are two side plates, each of pentagon shape. Each of the five sides are 6.5 inches long, resulting in a 10.0 inch high assembly. One of the side plates is 1/8 inch thick and has one of the sides rounded to form a high-strength mandrel of this thickness. The other side plate is identical except it has a thickness of 1/4 inch and provides the 1/4 inch mandrel. The side plates are separated by five bars, each secured near the points of the side plates at center to center distance of 5.5 inches. The bars are each 5.5 inches long and have diameters of 3/8, 1/2, 5/8, 3/4 and 1 inch.
- The Pentagon Mandrel Bend Test Apparatus is constructed of black anodized aluminum.
- The Pentagon design provides a completely self-contained unit with no loose parts.
- Paramount importance in the design is the plate backing of the 1/8 and 1/4 inch mandrels which eliminate errors of mandrel flexing.
- The Pentagon Mandrel Apparatus is ruggedly and attractively constructed. It will accommodate essentially all standard test panels.
- Mandrel size is etched in the thicker side panel after anodizing for permanence and ease of identification.
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