Rebar Cutter 3/4" x 12" Two Piece, Cutter Only (0375012R )Carbide Tipped Straight Shank One Piece Design for Rotary Only drilling for cutting metal rebar embedded in concrete. 11" Usable Length. Rebar Cutters are used to cut holes through embedded steel reinforcing bar found in concrete. They are used to prevent damage to the masonry hammer bit, which cannot cut through a metal rebar and will be damaged if the hammer bit is used when rebar is encountered. Once embedded rebar has been successfully cut with