PROCUT WS 15 HF WALLL SAW 

It sounds like you're referring to a ProCut WS 15 HF Wall Saw. This type of equipment is typically used in construction and renovation projects for cutting openings in concrete, brick, or other masonry materials.
The "WS 15 HF" likely refers to the model number or specification of the wall saw. These saws are designed for heavy-duty use and are often used by professionals in the construction industry due to their power and precision in cutting through thick walls and other structural materials.