For checking the lifting force of electromagnets and permanent magnets.
A bar weighs 4.5 kg.
It is possible to combine several of them thanks to a bolt (not supplied) & the central hole to reach up to 22.5 Kg if necessary (dead weight according to Astme1444 & ISO9934).
Serialized certificate for mass, compliance type AISI 1018/ C22 steel equivalence according to ISO9934 provided.