Awl.
axe
A stitching awl is a tool for piercing holes in leather.
Awl
A wood shaping tool that is three letters could be: - Adz - Awl - Axe - Saw
awl
adze
Awl
A cobbler uses an awl to punch holes in leather.
awl
ITS (((last))) a metal tool
a dog The word or phrase that you are looking for is 'nail'