The Bahco 466 series levels have a unique design on the radius, end caps, fastening pins and convex radius. They have two vertical (plumb) vials and one horizontal vial, with an accuracy of 0.5 mm /m. The thick 1.7mm profile construction will not twist and it has a V groove at the bottom making these levels ideal for use on pipes. Machined surface on top and bottom. Anti-shock rubber end caps.Laser edged centre zero measuring scale along the edge. Anodised finish. 2 hand holes. (only 1 on 400mm).The Bahco 466-400 Box Level has an anodised finished aluminium level with shock absorbing end caps and large vials that provide ease of use. It offers permanent precision of ± 0.5 mm per metre. Machined surfaces and \'V\' groove base, and a thick shaped profile. It also has laser marked measuring scale (for indication purposes only). Length: 400mm.Weight: 520g.