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A screw die used for forming the threads on screws, often wooden screws. Used by a wheelwright and carpenter in Braishfield, Hampshire.
This is a screw die, used for forming the threads on screws, often wooden screws in particular. The thread is formed by the twisting of the whole plate. This screw die was used by the donor's father, who was a wheelwright and carpenter in Braishfield, Hampshire.

1 die plate: metal