Draper I Beam Spirit Level, 1800mm (29065) Suezkade, Siebelink, Jan 9789023428800 Boeken bol. This aluminum I beam spirit level features three vials: a 180 vial and two 90 vials. It has easy to read graduation marks on the top side, starting from zero cm in the middle and extending both left and right. The vials are UV and shock resistant, while the rubber end caps provide added protection if the level is dropped. There is a handle and hang holes at both ends for easy storage. The accuracy is 0. 5mm in a standard working position. Made from aluminium 180 centre vial and two 90 vials Easy to read graduation marks UV and shock resistant vials and rubber end caps Hang holes for easy storage