shark plumbsite® aluminium cast levels expert quality, with unique front viewing plumbsite® vial. Heavy cast aluminium trapezoid-shaped level specially manufactured to withstand the impact of tapping with a hammer. Base milled to give accuracy of 0.5mm per 1m = 0.029° in standard position. Fixed all-round impact resistant horizontal & plumbsite® vials. Hang holes at both ends. Manufactured for draper tools by kapro. Sold loose with display hanger..