Aluminum, sulfuric anodize finish, 1.310 in. Lg, 0.500 in. Dia.One end chamfer, 0.06 in. By 45 deg, drilled and tapped for 5-40 thdclass 2, 0.380 in. Lg, other end drilled and tapped for 6-32 thdclass 2, 0.380 in. Lg, application data, p/o paper tape punch, lowspeed, type no. Ro-315/g