The Transverse Core Box Strength Accessory is used with the Sand Rammer, Model No. 42100, to make standard transverse sand specimens bonded with air set or core oil type binders. The kit includes tooling to form the transverse sand specimen, special rammer foot and, if required, three dryer plates for baking the rammed sand specimens. The prepared sand specimens are used in the Electronic Universal Sand Strength Machine, Model No. 42104 to determine cold transverse strength.