... various size, made of carbon steel, sand blast, baking varnish, hex shank, very good quality, fast delivery time Used for cutting, ... masonry bricksProduct Features:Material: high carbon steel, rail steel, or Cr-V steelSurface treatment: highly polished, heat treatment, powder painting, electrophoresishex shank ... be with hand gurad as customer's requestcustomized size available hex shank brick bolster