
1) Metalworking hand tool
Found on
https://www.crosswordclues.com/clue/drift-pin

In metalworking, a drift pin, drift pin punch, or simply drift, is the name for a tool used for enlarging holes, or aligning holes prior to bolting or riveting metal parts together. A drift pin is not used as a punch in the traditional sense of the term. A drift is constructed as a tapered rod, with the hammer acting on the large end of the taper....
Found on
http://en.wikipedia.org/wiki/Drift_pin

A tapered pin used during the erection process to align holes in steel members which are to be connected by bolting.
Found on
https://www.encyclo.co.uk/local/21107

Typically used in metalworking, a drift pin, drift pin punch, or simply drift is the name for a tool used in the alignment of adjoining holes prior to bolting or riveting metal parts together. Generally made from tool steel, a drift pin can be of virtually any length or diameter but sized appropriately for the task at hand. Drift pins are usually m...
Found on
https://www.encyclo.co.uk/local/22323
No exact match found.