This heavy-duty steel arm is designed to clamp firmly to your lathe bed, allowing the attachment of almost any 4” (100mm) dust hood and fittings. The height adjustable arm can be mounted in the traditional upright position at the rear of the lathe bed (for most turning applications), but can also be mounted towards the front and below the bed height, which is very practical for lighter turning and sanding. Arm can be simply swivelled out of the way, or (depending on your lathe bed design), it can be slid along the lathe bed, allowing you access to your work.