The Booster Plus has 3 cutting edges. The 120° cutter angle gurantees perfect concentric holes, giving greater pull-out values for your anchor. 3 cutting edges means no "snagging" of the bit on the rebar. The Booster Plus can then drill straight through the reinforcing.
The combination of a high pressure channel with a low pressure chamber enables the square flute to provide very efficient dust removal combined with reduced vibration.