81s 10ml magnetic torpedo level 25cm loose stabila 02511, the stabila 81s torpedo level has a strong cast aluminium t profile making it easy to hold'. '.strtoupper('t')he particularly slender trapezoidal bevelled shape makes it suitable for working in cramped spaces'. '.strtoupper('t')he die cast frame has 1 milled measuring face and protecting noses to prevent damage to milled face'. '.strtoupper('a')dditional magnets mounted in the milled measuring surface hold this level securely on scaffolding or beams'. '.strtoupper('2') vials 1 plumb and 1 horizontal.accuracy normal position 0.029deg0.5mm m.accuracy overhead position 0.043deg0.75mm m'. '.strtoupper('t')ype 81srem has rare earth magnets five times stronger.the stabila 81s 10mh magnetic torpedo level is supplied with a holster stabila 02511 81s 10mh magnetic torpedo level 25cm in holster