plumb bob

Description products 1 Plumb bob for measuring the surface if its vertical,mainly used for construction work 2 A safe attachment around the head of the plumb bob 3 Braided nylon line extends and holds at lengths up to 3M., retracts into case automatically 4Internal "flush pin" for zero distance measurements with plumb line flush with surface. 5 Unique plumb bob features a quick-stabilizing cap that reduces bob wobble and spin. 6 Bob also features embedded elastomer side bumpers and a thick tip guard 7Mainly used as a tool to test whether the building is vertical or not 8Must be fixed on a flat facet,which has no corrosion or soldered place 9 With sharpened ponitkeeps bob tip safe and secure hangs true and accurate 10Vertical testing for DIY,house building and fitment strong magnet for steel frames