Aluminum alloy; anodized finish; 2 rows of three each 0.125 in. Dial holesaround body; 2.588 in. Over all lg; 0.338 in. Flange h; 1.125 in. C to c; 0.562 in. Id; 1.113 in. Flange dia; 0.943 in. Body dia; inside corner chamfer 45.0 degrees by 0.062 in.; top chamfer 45.0 degrees by 0.062 in.