reeming iron
Webster's Dictionary (GCIDE)
Reem \Reem\, v. t. [Cf. Ream to make a hole in.] (Naut.) To open (the seams of a vessel's planking) for the purpose of calking them. [1913 Webster]
Reeming iron (Naut.), an iron chisel for reeming the seams of planks in calking ships. [1913 Webster]