The SDS Plus bits offer highly efficient drilling in reinforced concrete and masonry. They have a 4-flute design which provides fast dust removal so the bit can slice through concrete and rebar quickly with reduced wear. The centring tip prevents wandering and geometrical form prevents jamming. · · · SDS plus-5X Drill Bit offers highly efficient drilling in reinforced concrete · · Geometrical form of the 4-cutter head prevents jamming and breakage for optimal results · · Turn-angle head and 4-flute design provide fast dust removal for increased drilling speeds and reduced wear · · Centring tip guides drilling from the start for efficient work and exact hole diameters