This exclusive coating makes the ICECUT more resistant to higher stress under load and instant impact. 15/16 X 3 Icecut Annular Core Cutters Weldon Shank The new ICECUT annular cutters are coated with an exclusive mixture of chromium and aluminum AICrN and are designed to be used where lubricants are not permitted or problematic to apply.. Walter ICECUT annular cutters can withstand at least 200 degrees Celsius higher temperatures and produce less heat than a conventional TiAIN cutter.