ANEST IWATA KIWAMI4 Series. ANEST IWATA KIWAMI4-13BA4 1.3mm Successor Model W-400-134G Select no / with Cup. ANEST IWATA KIWAMI4-14BA4 1.4mm Successor Model W-400-144G Select no / with Cup. ANEST IWATA KIWAMI4-16BA4 1.6mm Successor Model W-400-164G Select no / with Cup.