WS 440 HF electric wall saw gives you increased possibilities for fast and efficient cutting in reinforced concrete, brick and other building materials, up to 21 in. thickness. Use this wall saw for all kinds of openings and sawing including stair, bevel and flush cutting. The user-friendly ergonomic design and ease of transport make your job fast and efficient. WS 440 HF can be combined with CS 10, transforming it into a perfect wire saw.