Drill Bit
n.d.
4 in.
Unidentified,
Object Type:
Tool
Medium and Support:
iron
Credit Line:
Florence Griswold Museum
Accession Number:
X1972.106
A counter sink drilling bit made of iron and designed to be used with a brace. This type of bit was used to widen the top of a hole so that a screw or bolt head could be fastened flush with the wooden surface.