HEAVY TOOL SHORT SET.

It sounds like you are referring to a type of boys' clothing, possibly a "heavy tool boy's short set." This could be a set that includes a T-shirt and shorts designed for boys, likely with a more rugged or durable design. The term "heavy tool" might imply that the set is meant for active wear, possibly featuring thicker fabrics, or a design related to workwear or construction themes.

If you are looking for this specific item, it might be a casual, durable set designed for outdoor activities or work-inspired fashion. The set could feature sturdy materials such as denim or cotton blends that provide comfort and flexibility for boys who are active.