Tools for drilling metal, interchangeable, with working parts of sintered metal carbide or cermets (excl. tools for tapping)
Tools for drilling, interchangeable, for working metal, with working parts of high speed steel (excl. tools for tapping)
Tools for drilling metal, interchangeable, with working parts of materials other than diamond, agglomerated diamond, sintered metal carbide, cermets or high speed steel (excl. tools for tapping)