De or het hoekmeetinstrument?

The correct Dutch article is:

het hoekmeetinstrument

Rule Words ending in -ment: usually het. See the rule

How to use hoekmeetinstrument

the hoekmeetinstrumenthet hoekmeetinstrument
this hoekmeetinstrumentdit hoekmeetinstrument
that hoekmeetinstrumentdat hoekmeetinstrument
our hoekmeetinstrumentons hoekmeetinstrument
your hoekmeetinstrumentjouw hoekmeetinstrument
every hoekmeetinstrumentelk hoekmeetinstrument
which hoekmeetinstrument?welk hoekmeetinstrument?
a big hoekmeetinstrument / the big hoekmeetinstrumenteen groot hoekmeetinstrument, het grote hoekmeetinstrument