Drill bit ADX set, 6 piece, for drilling rebar and metal deck, used with SDS-plus rotary hammers. Uninterrupted drilling through concrete and steel: solid-cross-configuration of ADX carbide head. Firm and secured carbide embedment with flank side reinforcements. Generous spiral flute entrance geometry for fast drill dust evacuation. Blow-back prevention through sub-trac spiral flute design. Noise damping effect due to ADX drill-head design. Significantly reduced “arm-hand-vibration” due to ADX multi-cutter head design. Unsurpassed drilling performance in concrete and stone and yes, embedded rebar and metal concrete deck.