From naca' in the sense of projecting; a missile (spear or arrow); also a quarry (whence stones are, as it were, ejected) -- before it was brought, dart.
KJV: And the house, when it was in building, was built of stone made ready before it was brought thither: so that there was neither hammer nor axe nor any tool of iron heard in the house, while it was in building.
NASB: The house, while it was being built, was built of stone prepared at the quarry, and there was neither hammer nor axe nor any iron tool heard in the house while it was being built.