Big Horn 24042 1/8 Inch Diamond Parting Tool 8-1/2 Inch beech handle. Fine quality 1/8-Inch 6mm Diamond Parting Tool. Made from M2 High Speed Steel (Rockwell 62/64) and fitted with ergonomically designed stained beech handle with heavy duty brass ferrules. Diamond sections reduces frictionand burning. Gives up to six times the edge life of carbon tools. Approximate tool length is 15-inches with 8-1/2-inch handle.