Assertion: hammer's head | /r/HasProperty | flat
Facets:
value: for smoothing
type: PURPOSE
value: typically
type: DEGREE
Source sentences:
text: These have different shaped heads that are typically flat, though not always.
text: It has two heads, one flat and the other, called the peen, rounded.
text: The round head is flat for smoothing, while the pick side is called a strawberry crown, which is used for working very small dents.