This is made specifically for spring bar pins and help install watch bracelets and bands to a new(or maybe old) watch case.
Width adjusts from 10 to 30 mm,Locks by turning a screw~
Notches for fork position from 0 to 45 degree angles,Reversible Steel forks~
1.0mm tips fit for -Dea-Dweller series watch band,1.2mm tips for normal watch bands,1.4mm and 1.6mm tips fit for the other steel for -watch bands