The Milwaukee 5/8" x 10" x 12" SDS+ Bit (48-20-7604) is a Carbide 2-Cutter SDS Bit. Milwaukee's 44 Magnum series carbide drilling bits offers a unique multi-faceted carbide insert reducing the breakage possibility when drilling through re-bar and mesh. The distinctive chisel shaped tip breaks concrete quickly for faster penetration. The four fluted spiral shaft has improved dust removal resulting in less bending stresses.